21096478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{6389}}^1$

素因数の和:6531

約数の個数: 16

約数和(自身を含む): 34352640

約数和(自身を除く): 13256162

約数列:

[1, 2, 13, 26, 127, 254, 1651, 3302, 6389, 12778, 83057, 166114, 811403, 1622806, 10548239, 21096478]

約数ペア:

[(1, 21096478), (2, 10548239), (13, 1622806), (26, 811403), (127, 166114), (254, 83057), (1651, 12778), (3302, 6389)]