13011957

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2909}}^1$

素因数の和:2993

約数の個数: 24

約数和(自身を含む): 21790080

約数和(自身を除く): 8778123

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 2909, 4473, 8727, 20363, 26181, 61089, 183267, 206539, 619617, 1445773, 1858851, 4337319, 13011957]

約数ペア:

[(1, 13011957), (3, 4337319), (7, 1858851), (9, 1445773), (21, 619617), (63, 206539), (71, 183267), (213, 61089), (497, 26181), (639, 20363), (1491, 8727), (2909, 4473)]