18664009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{647}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 23079168

約数和(自身を除く): 4415159

約数列:

[1, 7, 13, 91, 317, 647, 2219, 4121, 4529, 8411, 28847, 58877, 205099, 1435693, 2666287, 18664009]

約数ペア:

[(1, 18664009), (7, 2666287), (13, 1435693), (91, 205099), (317, 58877), (647, 28847), (2219, 8411), (4121, 4529)]