20880422

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5521}}^1$

素因数の和:5615

約数の個数: 16

約数和(自身を含む): 32866944

約数和(自身を除く): 11986522

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 5521, 11042, 171151, 336781, 342302, 673562, 10440211, 20880422]

約数ペア:

[(1, 20880422), (2, 10440211), (31, 673562), (61, 342302), (62, 336781), (122, 171151), (1891, 11042), (3782, 5521)]