21082568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202717}}^1$

素因数の和:202736

約数の個数: 16

約数和(自身を含む): 42570780

約数和(自身を除く): 21488212

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202717, 405434, 810868, 1621736, 2635321, 5270642, 10541284, 21082568]

約数ペア:

[(1, 21082568), (2, 10541284), (4, 5270642), (8, 2635321), (13, 1621736), (26, 810868), (52, 405434), (104, 202717)]