21841260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:85

約数の個数: 288

約数和(自身を含む): 82736640

約数和(自身を除く): 60895380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 19, 20, 21, 23, 28, 30, 34, 35, 38, 42, 46, 49, 51, 57, 60, 68, 69, 70, 76, 84, 85, 92, 95, 98, 102, 105, 114, 115, 119, 133, 138, 140, 147, 161, 170, 190, 196, 204, 210, 228, 230, 238, 245, 255, 266, 276, 285, 294, 322, 323, 340, 345, 357, 380, 391, 399, 420, 437, 460, 476, 483, 490, 510, 532, 570, 588, 595, 644, 646, 665, 690, 714, 735, 782, 798, 805, 833, 874, 931, 966, 969, 980, 1020, 1127, 1140, 1173, 1190, 1292, 1311, 1330, 1380, 1428, 1470, 1564, 1596, 1610, 1615, 1666, 1748, 1785, 1862, 1932, 1938, 1955, 1995, 2185, 2254, 2261, 2346, 2380, 2415, 2499, 2622, 2660, 2737, 2793, 2940, 3059, 3220, 3230, 3332, 3381, 3570, 3724, 3876, 3910, 3990, 4165, 4370, 4508, 4522, 4655, 4692, 4830, 4845, 4998, 5244, 5474, 5586, 5635, 5865, 6118, 6460, 6555, 6762, 6783, 7140, 7429, 7820, 7980, 8211, 8330, 8740, 9044, 9177, 9310, 9660, 9690, 9996, 10948, 11172, 11270, 11305, 11730, 12236, 12495, 13110, 13524, 13566, 13685, 13965, 14858, 15295, 15827, 16422, 16660, 16905, 18354, 18620, 19159, 19380, 21413, 22287, 22540, 22610, 23460, 24990, 26220, 27132, 27370, 27930, 29716, 30590, 31654, 32844, 33810, 33915, 36708, 37145, 38318, 41055, 42826, 44574, 45220, 45885, 47481, 49980, 52003, 54740, 55860, 57477, 61180, 63308, 64239, 67620, 67830, 74290, 76636, 79135, 82110, 85652, 89148, 91770, 94962, 95795, 104006, 107065, 111435, 114954, 128478, 135660, 148580, 156009, 158270, 164220, 183540, 189924, 191590, 208012, 214130, 222870, 229908, 237405, 256956, 260015, 287385, 312018, 316540, 321195, 364021, 383180, 428260, 445740, 474810, 520030, 574770, 624036, 642390, 728042, 780045, 949620, 1040060, 1092063, 1149540, 1284780, 1456084, 1560090, 1820105, 2184126, 3120180, 3640210, 4368252, 5460315, 7280420, 10920630, 21841260]

約数ペア:

[(1, 21841260), (2, 10920630), (3, 7280420), (4, 5460315), (5, 4368252), (6, 3640210), (7, 3120180), (10, 2184126), (12, 1820105), (14, 1560090), (15, 1456084), (17, 1284780), (19, 1149540), (20, 1092063), (21, 1040060), (23, 949620), (28, 780045), (30, 728042), (34, 642390), (35, 624036), (38, 574770), (42, 520030), (46, 474810), (49, 445740), (51, 428260), (57, 383180), (60, 364021), (68, 321195), (69, 316540), (70, 312018), (76, 287385), (84, 260015), (85, 256956), (92, 237405), (95, 229908), (98, 222870), (102, 214130), (105, 208012), (114, 191590), (115, 189924), (119, 183540), (133, 164220), (138, 158270), (140, 156009), (147, 148580), (161, 135660), (170, 128478), (190, 114954), (196, 111435), (204, 107065), (210, 104006), (228, 95795), (230, 94962), (238, 91770), (245, 89148), (255, 85652), (266, 82110), (276, 79135), (285, 76636), (294, 74290), (322, 67830), (323, 67620), (340, 64239), (345, 63308), (357, 61180), (380, 57477), (391, 55860), (399, 54740), (420, 52003), (437, 49980), (460, 47481), (476, 45885), (483, 45220), (490, 44574), (510, 42826), (532, 41055), (570, 38318), (588, 37145), (595, 36708), (644, 33915), (646, 33810), (665, 32844), (690, 31654), (714, 30590), (735, 29716), (782, 27930), (798, 27370), (805, 27132), (833, 26220), (874, 24990), (931, 23460), (966, 22610), (969, 22540), (980, 22287), (1020, 21413), (1127, 19380), (1140, 19159), (1173, 18620), (1190, 18354), (1292, 16905), (1311, 16660), (1330, 16422), (1380, 15827), (1428, 15295), (1470, 14858), (1564, 13965), (1596, 13685), (1610, 13566), (1615, 13524), (1666, 13110), (1748, 12495), (1785, 12236), (1862, 11730), (1932, 11305), (1938, 11270), (1955, 11172), (1995, 10948), (2185, 9996), (2254, 9690), (2261, 9660), (2346, 9310), (2380, 9177), (2415, 9044), (2499, 8740), (2622, 8330), (2660, 8211), (2737, 7980), (2793, 7820), (2940, 7429), (3059, 7140), (3220, 6783), (3230, 6762), (3332, 6555), (3381, 6460), (3570, 6118), (3724, 5865), (3876, 5635), (3910, 5586), (3990, 5474), (4165, 5244), (4370, 4998), (4508, 4845), (4522, 4830), (4655, 4692)]