81256557

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{1301}}^1$

素因数の和:1604

約数の個数: 16

約数和(自身を含む): 109992960

約数和(自身を除く): 28736403

約数列:

[1, 3, 109, 191, 327, 573, 1301, 3903, 20819, 62457, 141809, 248491, 425427, 745473, 27085519, 81256557]

約数ペア:

[(1, 81256557), (3, 27085519), (109, 745473), (191, 425427), (327, 248491), (573, 141809), (1301, 62457), (3903, 20819)]