21107060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81181}}^1$

素因数の和:81203

約数の個数: 24

約数和(自身を含む): 47735016

約数和(自身を除く): 26627956

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 81181, 162362, 324724, 405905, 811810, 1055353, 1623620, 2110706, 4221412, 5276765, 10553530, 21107060]

約数ペア:

[(1, 21107060), (2, 10553530), (4, 5276765), (5, 4221412), (10, 2110706), (13, 1623620), (20, 1055353), (26, 811810), (52, 405905), (65, 324724), (130, 162362), (260, 81181)]