81610879

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{5297}}^1$

素因数の和:5406

約数の個数: 16

約数和(自身を含む): 97652736

約数和(自身を除く): 16041857

約数列:

[1, 7, 31, 71, 217, 497, 2201, 5297, 15407, 37079, 164207, 376087, 1149449, 2632609, 11658697, 81610879]

約数ペア:

[(1, 81610879), (7, 11658697), (31, 2632609), (71, 1149449), (217, 376087), (497, 164207), (2201, 37079), (5297, 15407)]