21960185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2579}}^1$

素因数の和:2728

約数の個数: 16

約数和(自身を含む): 28607040

約数和(自身を除く): 6646855

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2579, 8515, 12895, 33527, 167635, 337849, 1689245, 4392037, 21960185]

約数ペア:

[(1, 21960185), (5, 4392037), (13, 1689245), (65, 337849), (131, 167635), (655, 33527), (1703, 12895), (2579, 8515)]