21742347

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17807}}^1$

素因数の和:17858

約数の個数: 16

約数和(自身を含む): 32481792

約数和(自身を除く): 10739445

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17807, 53421, 195877, 587631, 658859, 1976577, 7247449, 21742347]

約数ペア:

[(1, 21742347), (3, 7247449), (11, 1976577), (33, 658859), (37, 587631), (111, 195877), (407, 53421), (1221, 17807)]