20038557

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 13507683

約数列:

[1, 3, 7, 11, 21, 33, 77, 223, 231, 389, 669, 1167, 1561, 2453, 2723, 4279, 4683, 7359, 8169, 12837, 17171, 29953, 51513, 86747, 89859, 260241, 607229, 954217, 1821687, 2862651, 6679519, 20038557]

約数ペア:

[(1, 20038557), (3, 6679519), (7, 2862651), (11, 1821687), (21, 954217), (33, 607229), (77, 260241), (223, 89859), (231, 86747), (389, 51513), (669, 29953), (1167, 17171), (1561, 12837), (2453, 8169), (2723, 7359), (4279, 4683)]