22171825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4013}}^1$

素因数の和:4053

約数の個数: 24

約数和(自身を含む): 31357368

約数和(自身を除く): 9185543

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 4013, 5525, 20065, 52169, 68221, 100325, 260845, 341105, 886873, 1304225, 1705525, 4434365, 22171825]

約数ペア:

[(1, 22171825), (5, 4434365), (13, 1705525), (17, 1304225), (25, 886873), (65, 341105), (85, 260845), (221, 100325), (325, 68221), (425, 52169), (1105, 20065), (4013, 5525)]