21499018920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{8689}}^1$

素因数の和:8817

約数の個数: 256

約数和(自身を含む): 75081600000

約数和(自身を除く): 53582581080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 79, 87, 90, 108, 116, 120, 135, 145, 158, 174, 180, 216, 232, 237, 261, 270, 290, 316, 348, 360, 395, 435, 474, 522, 540, 580, 632, 696, 711, 783, 790, 870, 948, 1044, 1080, 1160, 1185, 1305, 1422, 1566, 1580, 1740, 1896, 2088, 2133, 2291, 2370, 2610, 2844, 3132, 3160, 3480, 3555, 3915, 4266, 4582, 4740, 5220, 5688, 6264, 6873, 7110, 7830, 8532, 8689, 9164, 9480, 10440, 10665, 11455, 13746, 14220, 15660, 17064, 17378, 18328, 20619, 21330, 22910, 26067, 27492, 28440, 31320, 34365, 34756, 41238, 42660, 43445, 45820, 52134, 54984, 61857, 68730, 69512, 78201, 82476, 85320, 86890, 91640, 103095, 104268, 123714, 130335, 137460, 156402, 164952, 173780, 206190, 208536, 234603, 247428, 251981, 260670, 274920, 309285, 312804, 347560, 391005, 412380, 469206, 494856, 503962, 521340, 618570, 625608, 686431, 755943, 782010, 824760, 938412, 1007924, 1042680, 1173015, 1237140, 1259905, 1372862, 1511886, 1564020, 1876824, 2015848, 2059293, 2267829, 2346030, 2474280, 2519810, 2745724, 3023772, 3128040, 3432155, 3779715, 4118586, 4535658, 4692060, 5039620, 5491448, 6047544, 6177879, 6803487, 6864310, 7559430, 8237172, 9071316, 9384120, 10079240, 10296465, 11339145, 12355758, 13606974, 13728620, 15118860, 16474344, 18142632, 18533637, 19906499, 20592930, 22678290, 24711516, 27213948, 27457240, 30237720, 30889395, 34017435, 37067274, 39812998, 41185860, 45356580, 49423032, 54427896, 59719497, 61778790, 68034870, 74134548, 79625996, 82371720, 90713160, 92668185, 99532495, 119438994, 123557580, 136069740, 148269096, 159251992, 179158491, 185336370, 199064990, 238877988, 247115160, 272139480, 298597485, 358316982, 370672740, 398129980, 477755976, 537475473, 597194970, 716633964, 741345480, 796259960, 895792455, 1074950946, 1194389940, 1433267928, 1791584910, 2149901892, 2388779880, 2687377365, 3583169820, 4299803784, 5374754730, 7166339640, 10749509460, 21499018920]

約数ペア:

[(1, 21499018920), (2, 10749509460), (3, 7166339640), (4, 5374754730), (5, 4299803784), (6, 3583169820), (8, 2687377365), (9, 2388779880), (10, 2149901892), (12, 1791584910), (15, 1433267928), (18, 1194389940), (20, 1074950946), (24, 895792455), (27, 796259960), (29, 741345480), (30, 716633964), (36, 597194970), (40, 537475473), (45, 477755976), (54, 398129980), (58, 370672740), (60, 358316982), (72, 298597485), (79, 272139480), (87, 247115160), (90, 238877988), (108, 199064990), (116, 185336370), (120, 179158491), (135, 159251992), (145, 148269096), (158, 136069740), (174, 123557580), (180, 119438994), (216, 99532495), (232, 92668185), (237, 90713160), (261, 82371720), (270, 79625996), (290, 74134548), (316, 68034870), (348, 61778790), (360, 59719497), (395, 54427896), (435, 49423032), (474, 45356580), (522, 41185860), (540, 39812998), (580, 37067274), (632, 34017435), (696, 30889395), (711, 30237720), (783, 27457240), (790, 27213948), (870, 24711516), (948, 22678290), (1044, 20592930), (1080, 19906499), (1160, 18533637), (1185, 18142632), (1305, 16474344), (1422, 15118860), (1566, 13728620), (1580, 13606974), (1740, 12355758), (1896, 11339145), (2088, 10296465), (2133, 10079240), (2291, 9384120), (2370, 9071316), (2610, 8237172), (2844, 7559430), (3132, 6864310), (3160, 6803487), (3480, 6177879), (3555, 6047544), (3915, 5491448), (4266, 5039620), (4582, 4692060), (4740, 4535658), (5220, 4118586), (5688, 3779715), (6264, 3432155), (6873, 3128040), (7110, 3023772), (7830, 2745724), (8532, 2519810), (8689, 2474280), (9164, 2346030), (9480, 2267829), (10440, 2059293), (10665, 2015848), (11455, 1876824), (13746, 1564020), (14220, 1511886), (15660, 1372862), (17064, 1259905), (17378, 1237140), (18328, 1173015), (20619, 1042680), (21330, 1007924), (22910, 938412), (26067, 824760), (27492, 782010), (28440, 755943), (31320, 686431), (34365, 625608), (34756, 618570), (41238, 521340), (42660, 503962), (43445, 494856), (45820, 469206), (52134, 412380), (54984, 391005), (61857, 347560), (68730, 312804), (69512, 309285), (78201, 274920), (82476, 260670), (85320, 251981), (86890, 247428), (91640, 234603), (103095, 208536), (104268, 206190), (123714, 173780), (130335, 164952), (137460, 156402)]