1390755821

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{493001}}^1$

素因数の和:493052

約数の個数: 16

約数和(自身を含む): 1766919168

約数和(自身を除く): 376163347

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 493001, 3451007, 6409013, 15283031, 44863091, 106981217, 198679403, 1390755821]

約数ペア:

[(1, 1390755821), (7, 198679403), (13, 106981217), (31, 44863091), (91, 15283031), (217, 6409013), (403, 3451007), (2821, 493001)]