12871565

素因数分解:

$5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 18172512

約数和(自身を除く): 5300947

約数列:

[1, 5, 7, 35, 49, 107, 245, 491, 535, 749, 2455, 3437, 3745, 5243, 17185, 24059, 26215, 52537, 120295, 262685, 367759, 1838795, 2574313, 12871565]

約数ペア:

[(1, 12871565), (5, 2574313), (7, 1838795), (35, 367759), (49, 262685), (107, 120295), (245, 52537), (491, 26215), (535, 24059), (749, 17185), (2455, 5243), (3437, 3745)]