21376641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3833}}^1$

素因数の和:3873

約数の個数: 24

約数和(自身を含む): 33677856

約数和(自身を除く): 12301215

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 429, 507, 1859, 3833, 5577, 11499, 42163, 49829, 126489, 149487, 548119, 647777, 1644357, 1943331, 7125547, 21376641]

約数ペア:

[(1, 21376641), (3, 7125547), (11, 1943331), (13, 1644357), (33, 647777), (39, 548119), (143, 149487), (169, 126489), (429, 49829), (507, 42163), (1859, 11499), (3833, 5577)]