21986999975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{46288421}}^1$

素因数の和:46288450

約数の個数: 12

約数和(自身を含む): 28698821640

約数和(自身を除く): 6711821665

約数列:

[1, 5, 19, 25, 95, 475, 46288421, 231442105, 879479999, 1157210525, 4397399995, 21986999975]

約数ペア:

[(1, 21986999975), (5, 4397399995), (19, 1157210525), (25, 879479999), (95, 231442105), (475, 46288421)]