21401640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1$

素因数の和:316

約数の個数: 192

約数和(自身を含む): 79606800

約数和(自身を除く): 58205160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 51, 52, 60, 65, 68, 72, 78, 85, 90, 102, 104, 117, 120, 130, 136, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 269, 306, 312, 340, 360, 390, 408, 442, 468, 510, 520, 538, 585, 612, 663, 680, 765, 780, 807, 884, 936, 1020, 1076, 1105, 1170, 1224, 1326, 1345, 1530, 1560, 1614, 1768, 1989, 2040, 2152, 2210, 2340, 2421, 2652, 2690, 3060, 3228, 3315, 3497, 3978, 4035, 4420, 4573, 4680, 4842, 5304, 5380, 6120, 6456, 6630, 6994, 7956, 8070, 8840, 9146, 9684, 9945, 10491, 10760, 12105, 13260, 13719, 13988, 15912, 16140, 17485, 18292, 19368, 19890, 20982, 22865, 24210, 26520, 27438, 27976, 31473, 32280, 34970, 36584, 39780, 41157, 41964, 45730, 48420, 52455, 54876, 59449, 62946, 68595, 69940, 79560, 82314, 83928, 91460, 96840, 104910, 109752, 118898, 125892, 137190, 139880, 157365, 164628, 178347, 182920, 205785, 209820, 237796, 251784, 274380, 297245, 314730, 329256, 356694, 411570, 419640, 475592, 535041, 548760, 594490, 629460, 713388, 823140, 891735, 1070082, 1188980, 1258920, 1426776, 1646280, 1783470, 2140164, 2377960, 2675205, 3566940, 4280328, 5350410, 7133880, 10700820, 21401640]

約数ペア:

[(1, 21401640), (2, 10700820), (3, 7133880), (4, 5350410), (5, 4280328), (6, 3566940), (8, 2675205), (9, 2377960), (10, 2140164), (12, 1783470), (13, 1646280), (15, 1426776), (17, 1258920), (18, 1188980), (20, 1070082), (24, 891735), (26, 823140), (30, 713388), (34, 629460), (36, 594490), (39, 548760), (40, 535041), (45, 475592), (51, 419640), (52, 411570), (60, 356694), (65, 329256), (68, 314730), (72, 297245), (78, 274380), (85, 251784), (90, 237796), (102, 209820), (104, 205785), (117, 182920), (120, 178347), (130, 164628), (136, 157365), (153, 139880), (156, 137190), (170, 125892), (180, 118898), (195, 109752), (204, 104910), (221, 96840), (234, 91460), (255, 83928), (260, 82314), (269, 79560), (306, 69940), (312, 68595), (340, 62946), (360, 59449), (390, 54876), (408, 52455), (442, 48420), (468, 45730), (510, 41964), (520, 41157), (538, 39780), (585, 36584), (612, 34970), (663, 32280), (680, 31473), (765, 27976), (780, 27438), (807, 26520), (884, 24210), (936, 22865), (1020, 20982), (1076, 19890), (1105, 19368), (1170, 18292), (1224, 17485), (1326, 16140), (1345, 15912), (1530, 13988), (1560, 13719), (1614, 13260), (1768, 12105), (1989, 10760), (2040, 10491), (2152, 9945), (2210, 9684), (2340, 9146), (2421, 8840), (2652, 8070), (2690, 7956), (3060, 6994), (3228, 6630), (3315, 6456), (3497, 6120), (3978, 5380), (4035, 5304), (4420, 4842), (4573, 4680)]