13211681

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:448

約数の個数: 16

約数和(自身を含む): 15552000

約数和(自身を除く): 2340319

約数列:

[1, 7, 53, 149, 239, 371, 1043, 1673, 7897, 12667, 35611, 55279, 88669, 249277, 1887383, 13211681]

約数ペア:

[(1, 13211681), (7, 1887383), (53, 249277), (149, 88669), (239, 55279), (371, 35611), (1043, 12667), (1673, 7897)]