201855013479

素因数分解:

$3^2\times 7^2\times {\mathrm{457721119}}^1$

素因数の和:457721139

約数の個数: 18

約数和(自身を含む): 339171349920

約数和(自身を除く): 137316336441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 457721119, 1373163357, 3204047833, 4119490071, 9612143499, 22428334831, 28836430497, 67285004493, 201855013479]

約数ペア:

[(1, 201855013479), (3, 67285004493), (7, 28836430497), (9, 22428334831), (21, 9612143499), (49, 4119490071), (63, 3204047833), (147, 1373163357), (441, 457721119)]