21918581

素因数分解:

${\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 16

約数和(自身を含む): 23474688

約数和(自身を除く): 1556107

約数列:

[1, 31, 61, 67, 173, 1891, 2077, 4087, 5363, 10553, 11591, 126697, 327143, 359321, 707051, 21918581]

約数ペア:

[(1, 21918581), (31, 707051), (61, 359321), (67, 327143), (173, 126697), (1891, 11591), (2077, 10553), (4087, 5363)]