15420671

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 18339840

約数和(自身を除く): 2919169

約数列:

[1, 7, 31, 179, 217, 397, 1253, 2779, 5549, 12307, 38843, 71063, 86149, 497441, 2202953, 15420671]

約数ペア:

[(1, 15420671), (7, 2202953), (31, 497441), (179, 86149), (217, 71063), (397, 38843), (1253, 12307), (2779, 5549)]