21000317754

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1\times {\mathrm{166297}}^1$

素因数の和:167934

約数の個数: 32

約数和(自身を含む): 45259663680

約数和(自身を除く): 24259345926

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1619, 3238, 4857, 9714, 21047, 42094, 63141, 126282, 166297, 332594, 498891, 997782, 2161861, 4323722, 6485583, 12971166, 269234843, 538469686, 807704529, 1615409058, 3500052959, 7000105918, 10500158877, 21000317754]

約数ペア:

[(1, 21000317754), (2, 10500158877), (3, 7000105918), (6, 3500052959), (13, 1615409058), (26, 807704529), (39, 538469686), (78, 269234843), (1619, 12971166), (3238, 6485583), (4857, 4323722), (9714, 2161861), (21047, 997782), (42094, 498891), (63141, 332594), (126282, 166297)]