51213110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{393947}}^1$

素因数の和:393967

約数の個数: 16

約数和(自身を含む): 99274896

約数和(自身を除く): 48061786

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 393947, 787894, 1969735, 3939470, 5121311, 10242622, 25606555, 51213110]

約数ペア:

[(1, 51213110), (2, 25606555), (5, 10242622), (10, 5121311), (13, 3939470), (26, 1969735), (65, 787894), (130, 393947)]