21091059

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1307}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 33463872

約数和(自身を除く): 12372813

約数列:

[1, 3, 9, 11, 33, 99, 163, 489, 1307, 1467, 1793, 3921, 5379, 11763, 14377, 16137, 43131, 129393, 213041, 639123, 1917369, 2343451, 7030353, 21091059]

約数ペア:

[(1, 21091059), (3, 7030353), (9, 2343451), (11, 1917369), (33, 639123), (99, 213041), (163, 129393), (489, 43131), (1307, 16137), (1467, 14377), (1793, 11763), (3921, 5379)]