21925025

素因数分解:

$5^2\times {\mathrm{281}}^1\times {\mathrm{3121}}^1$

素因数の和:3412

約数の個数: 12

約数和(自身を含む): 27292524

約数和(自身を除く): 5367499

約数列:

[1, 5, 25, 281, 1405, 3121, 7025, 15605, 78025, 877001, 4385005, 21925025]

約数ペア:

[(1, 21925025), (5, 4385005), (25, 877001), (281, 78025), (1405, 15605), (3121, 7025)]