81851917

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{3119}}^1$

素因数の和:3312

約数の個数: 16

約数和(自身を含む): 98242560

約数和(自身を除く): 16390643

約数列:

[1, 7, 23, 161, 163, 1141, 3119, 3749, 21833, 26243, 71737, 502159, 508397, 3558779, 11693131, 81851917]

約数ペア:

[(1, 81851917), (7, 11693131), (23, 3558779), (161, 508397), (163, 502159), (1141, 71737), (3119, 26243), (3749, 21833)]