12821599

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 15552000

約数和(自身を除く): 2730401

約数列:

[1, 7, 19, 133, 149, 647, 1043, 2831, 4529, 12293, 19817, 86051, 96403, 674821, 1831657, 12821599]

約数ペア:

[(1, 12821599), (7, 1831657), (19, 674821), (133, 96403), (149, 86051), (647, 19817), (1043, 12293), (2831, 4529)]