21026460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3851}}^1$

素因数の和:3883

約数の個数: 96

約数和(自身を含む): 72479232

約数和(自身を除く): 51452772

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3851, 5460, 7702, 11553, 15404, 19255, 23106, 26957, 38510, 46212, 50063, 53914, 57765, 77020, 80871, 100126, 107828, 115530, 134785, 150189, 161742, 200252, 231060, 250315, 269570, 300378, 323484, 350441, 404355, 500630, 539140, 600756, 700882, 750945, 808710, 1001260, 1051323, 1401764, 1501890, 1617420, 1752205, 2102646, 3003780, 3504410, 4205292, 5256615, 7008820, 10513230, 21026460]

約数ペア:

[(1, 21026460), (2, 10513230), (3, 7008820), (4, 5256615), (5, 4205292), (6, 3504410), (7, 3003780), (10, 2102646), (12, 1752205), (13, 1617420), (14, 1501890), (15, 1401764), (20, 1051323), (21, 1001260), (26, 808710), (28, 750945), (30, 700882), (35, 600756), (39, 539140), (42, 500630), (52, 404355), (60, 350441), (65, 323484), (70, 300378), (78, 269570), (84, 250315), (91, 231060), (105, 200252), (130, 161742), (140, 150189), (156, 134785), (182, 115530), (195, 107828), (210, 100126), (260, 80871), (273, 77020), (364, 57765), (390, 53914), (420, 50063), (455, 46212), (546, 38510), (780, 26957), (910, 23106), (1092, 19255), (1365, 15404), (1820, 11553), (2730, 7702), (3851, 5460)]