21877037

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12653}}^1$

素因数の和:12692

約数の個数: 16

約数和(自身を含む): 28344960

約数和(自身を除く): 6467923

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 12653, 88571, 164489, 240407, 1151423, 1682849, 3125291, 21877037]

約数ペア:

[(1, 21877037), (7, 3125291), (13, 1682849), (19, 1151423), (91, 240407), (133, 164489), (247, 88571), (1729, 12653)]