12991731

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{809}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 17845920

約数和(自身を除く): 4854189

約数列:

[1, 3, 53, 101, 159, 303, 809, 2427, 5353, 16059, 42877, 81709, 128631, 245127, 4330577, 12991731]

約数ペア:

[(1, 12991731), (3, 4330577), (53, 245127), (101, 128631), (159, 81709), (303, 42877), (809, 16059), (2427, 5353)]