21915839

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 25505280

約数和(自身を除く): 3589441

約数列:

[1, 11, 17, 163, 187, 719, 1793, 2771, 7909, 12223, 30481, 117197, 134453, 1289167, 1992349, 21915839]

約数ペア:

[(1, 21915839), (11, 1992349), (17, 1289167), (163, 134453), (187, 117197), (719, 30481), (1793, 12223), (2771, 7909)]