21307260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:547

約数の個数: 96

約数和(自身を含む): 65479680

約数和(自身を除く): 44172420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 59, 60, 65, 78, 118, 130, 156, 177, 195, 236, 260, 295, 354, 390, 463, 590, 708, 767, 780, 885, 926, 1180, 1389, 1534, 1770, 1852, 2301, 2315, 2778, 3068, 3540, 3835, 4602, 4630, 5556, 6019, 6945, 7670, 9204, 9260, 11505, 12038, 13890, 15340, 18057, 23010, 24076, 27317, 27780, 30095, 36114, 46020, 54634, 60190, 72228, 81951, 90285, 109268, 120380, 136585, 163902, 180570, 273170, 327804, 355121, 361140, 409755, 546340, 710242, 819510, 1065363, 1420484, 1639020, 1775605, 2130726, 3551210, 4261452, 5326815, 7102420, 10653630, 21307260]

約数ペア:

[(1, 21307260), (2, 10653630), (3, 7102420), (4, 5326815), (5, 4261452), (6, 3551210), (10, 2130726), (12, 1775605), (13, 1639020), (15, 1420484), (20, 1065363), (26, 819510), (30, 710242), (39, 546340), (52, 409755), (59, 361140), (60, 355121), (65, 327804), (78, 273170), (118, 180570), (130, 163902), (156, 136585), (177, 120380), (195, 109268), (236, 90285), (260, 81951), (295, 72228), (354, 60190), (390, 54634), (463, 46020), (590, 36114), (708, 30095), (767, 27780), (780, 27317), (885, 24076), (926, 23010), (1180, 18057), (1389, 15340), (1534, 13890), (1770, 12038), (1852, 11505), (2301, 9260), (2315, 9204), (2778, 7670), (3068, 6945), (3540, 6019), (3835, 5556), (4602, 4630)]