21822775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{809}}^1$

素因数の和:915

約数の個数: 24

約数和(自身を含む): 29529360

約数和(自身を除く): 7706585

約数列:

[1, 5, 13, 25, 65, 83, 325, 415, 809, 1079, 2075, 4045, 5395, 10517, 20225, 26975, 52585, 67147, 262925, 335735, 872911, 1678675, 4364555, 21822775]

約数ペア:

[(1, 21822775), (5, 4364555), (13, 1678675), (25, 872911), (65, 335735), (83, 262925), (325, 67147), (415, 52585), (809, 26975), (1079, 20225), (2075, 10517), (4045, 5395)]