20707885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12983}}^1$

素因数の和:13028

約数の個数: 16

約数和(自身を含む): 28045440

約数和(自身を除く): 7337555

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12983, 64915, 142813, 376507, 714065, 1882535, 4141577, 20707885]

約数ペア:

[(1, 20707885), (5, 4141577), (11, 1882535), (29, 714065), (55, 376507), (145, 142813), (319, 64915), (1595, 12983)]