21625375

素因数分解:

$5^3\times {\mathrm{113}}^1\times {\mathrm{1531}}^1$

素因数の和:1659

約数の個数: 16

約数和(自身を含む): 27245088

約数和(自身を除く): 5619713

約数列:

[1, 5, 25, 113, 125, 565, 1531, 2825, 7655, 14125, 38275, 173003, 191375, 865015, 4325075, 21625375]

約数ペア:

[(1, 21625375), (5, 4325075), (25, 865015), (113, 191375), (125, 173003), (565, 38275), (1531, 14125), (2825, 7655)]