20211175

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 25998336

約数和(自身を除く): 5787161

約数列:

[1, 5, 25, 47, 103, 167, 235, 515, 835, 1175, 2575, 4175, 4841, 7849, 17201, 24205, 39245, 86005, 121025, 196225, 430025, 808447, 4042235, 20211175]

約数ペア:

[(1, 20211175), (5, 4042235), (25, 808447), (47, 430025), (103, 196225), (167, 121025), (235, 86005), (515, 39245), (835, 24205), (1175, 17201), (2575, 7849), (4175, 4841)]