217820161

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{2267}}^1$

素因数の和:2688

約数の個数: 16

約数和(自身を含む): 247665600

約数和(自身を除く): 29845439

約数列:

[1, 13, 19, 247, 389, 2267, 5057, 7391, 29471, 43073, 96083, 559949, 881863, 11464219, 16755397, 217820161]

約数ペア:

[(1, 217820161), (13, 16755397), (19, 11464219), (247, 881863), (389, 559949), (2267, 96083), (5057, 43073), (7391, 29471)]