291274281

素因数分解:

$3^2\times {\mathrm{1531}}^1\times {\mathrm{21139}}^1$

素因数の和:22676

約数の個数: 12

約数和(自身を含む): 421024240

約数和(自身を除く): 129749959

約数列:

[1, 3, 9, 1531, 4593, 13779, 21139, 63417, 190251, 32363809, 97091427, 291274281]

約数ペア:

[(1, 291274281), (3, 97091427), (9, 32363809), (1531, 190251), (4593, 63417), (13779, 21139)]