217874541

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{21493}}^1$

素因数の和:21636

約数の個数: 16

約数和(自身を含む): 302635520

約数和(自身を除く): 84760979

約数列:

[1, 3, 31, 93, 109, 327, 3379, 10137, 21493, 64479, 666283, 1998849, 2342737, 7028211, 72624847, 217874541]

約数ペア:

[(1, 217874541), (3, 72624847), (31, 7028211), (93, 2342737), (109, 1998849), (327, 666283), (3379, 64479), (10137, 21493)]