218742009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{31307}}^1$

素因数の和:31464

約数の個数: 16

約数和(自身を含む): 311076288

約数和(自身を除く): 92334279

約数列:

[1, 3, 17, 51, 137, 411, 2329, 6987, 31307, 93921, 532219, 1596657, 4289059, 12867177, 72914003, 218742009]

約数ペア:

[(1, 218742009), (3, 72914003), (17, 12867177), (51, 4289059), (137, 1596657), (411, 532219), (2329, 93921), (6987, 31307)]