21251698

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{7639}}^1$

素因数の和:7761

約数の個数: 16

約数和(自身を含む): 34655040

約数和(自身を除く): 13403342

約数列:

[1, 2, 13, 26, 107, 214, 1391, 2782, 7639, 15278, 99307, 198614, 817373, 1634746, 10625849, 21251698]

約数ペア:

[(1, 21251698), (2, 10625849), (13, 1634746), (26, 817373), (107, 198614), (214, 99307), (1391, 15278), (2782, 7639)]