20145391

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4129}}^1$

素因数の和:4194

約数の個数: 16

約数和(自身を含む): 24978240

約数和(自身を除く): 4832849

約数列:

[1, 7, 17, 41, 119, 287, 697, 4129, 4879, 28903, 70193, 169289, 491351, 1185023, 2877913, 20145391]

約数ペア:

[(1, 20145391), (7, 2877913), (17, 1185023), (41, 491351), (119, 169289), (287, 70193), (697, 28903), (4129, 4879)]