18856825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3413}}^1$

素因数の和:3453

約数の個数: 24

約数和(自身を含む): 26670168

約数和(自身を除く): 7813343

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3413, 5525, 17065, 44369, 58021, 85325, 221845, 290105, 754273, 1109225, 1450525, 3771365, 18856825]

約数ペア:

[(1, 18856825), (5, 3771365), (13, 1450525), (17, 1109225), (25, 754273), (65, 290105), (85, 221845), (221, 85325), (325, 58021), (425, 44369), (1105, 17065), (3413, 5525)]