21000575240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{5097227}}^1$

素因数の和:5097341

約数の個数: 32

約数和(自身を含む): 47710054080

約数和(自身を除く): 26709478840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 5097227, 10194454, 20388908, 25486135, 40777816, 50972270, 101944540, 203889080, 525014381, 1050028762, 2100057524, 2625071905, 4200115048, 5250143810, 10500287620, 21000575240]

約数ペア:

[(1, 21000575240), (2, 10500287620), (4, 5250143810), (5, 4200115048), (8, 2625071905), (10, 2100057524), (20, 1050028762), (40, 525014381), (103, 203889080), (206, 101944540), (412, 50972270), (515, 40777816), (824, 25486135), (1030, 20388908), (2060, 10194454), (4120, 5097227)]