20225265

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31357}}^1$

素因数の和:31408

約数の個数: 16

約数和(自身を含む): 33114048

約数和(自身を除く): 12888783

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31357, 94071, 156785, 470355, 1348351, 4045053, 6741755, 20225265]

約数ペア:

[(1, 20225265), (3, 6741755), (5, 4045053), (15, 1348351), (43, 470355), (129, 156785), (215, 94071), (645, 31357)]