21904858

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1329

約数の個数: 16

約数和(自身を含む): 33561000

約数和(自身を除く): 11656142

約数列:

[1, 2, 89, 109, 178, 218, 1129, 2258, 9701, 19402, 100481, 123061, 200962, 246122, 10952429, 21904858]

約数ペア:

[(1, 21904858), (2, 10952429), (89, 246122), (109, 200962), (178, 123061), (218, 100481), (1129, 19402), (2258, 9701)]