21725652

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139267}}^1$

素因数の和:139287

約数の個数: 24

約数和(自身を含む): 54593056

約数和(自身を除く): 32867404

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139267, 278534, 417801, 557068, 835602, 1671204, 1810471, 3620942, 5431413, 7241884, 10862826, 21725652]

約数ペア:

[(1, 21725652), (2, 10862826), (3, 7241884), (4, 5431413), (6, 3620942), (12, 1810471), (13, 1671204), (26, 835602), (39, 557068), (52, 417801), (78, 278534), (156, 139267)]