21201169

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^3\times {\mathrm{281}}^1$

素因数の和:349

約数の個数: 16

約数和(自身を含む): 24500160

約数和(自身を除く): 3298991

約数列:

[1, 11, 19, 209, 281, 361, 3091, 3971, 5339, 6859, 58729, 75449, 101441, 1115851, 1927379, 21201169]

約数ペア:

[(1, 21201169), (11, 1927379), (19, 1115851), (209, 101441), (281, 75449), (361, 58729), (3091, 6859), (3971, 5339)]