21442525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3881}}^1$

素因数の和:3921

約数の個数: 24

約数和(自身を含む): 30326184

約数和(自身を除く): 8883659

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3881, 5525, 19405, 50453, 65977, 97025, 252265, 329885, 857701, 1261325, 1649425, 4288505, 21442525]

約数ペア:

[(1, 21442525), (5, 4288505), (13, 1649425), (17, 1261325), (25, 857701), (65, 329885), (85, 252265), (221, 97025), (325, 65977), (425, 50453), (1105, 19405), (3881, 5525)]