217638507

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{3617}}^1$

素因数の和:4298

約数の個数: 16

約数和(自身を含む): 300091392

約数和(自身を除く): 82452885

約数列:

[1, 3, 31, 93, 647, 1941, 3617, 10851, 20057, 60171, 112127, 336381, 2340199, 7020597, 72546169, 217638507]

約数ペア:

[(1, 217638507), (3, 72546169), (31, 7020597), (93, 2340199), (647, 336381), (1941, 112127), (3617, 60171), (10851, 20057)]