20177379

素因数分解:

$3^2\times {\mathrm{127}}^2\times {\mathrm{139}}^1$

素因数の和:399

約数の個数: 18

約数和(自身を含む): 29587740

約数和(自身を除く): 9410361

約数列:

[1, 3, 9, 127, 139, 381, 417, 1143, 1251, 16129, 17653, 48387, 52959, 145161, 158877, 2241931, 6725793, 20177379]

約数ペア:

[(1, 20177379), (3, 6725793), (9, 2241931), (127, 158877), (139, 145161), (381, 52959), (417, 48387), (1143, 17653), (1251, 16129)]