291249171

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{455789}}^1$

素因数の和:455866

約数の個数: 12

約数和(自身を含む): 426619440

約数和(自身を除く): 135370269

約数列:

[1, 3, 9, 71, 213, 639, 455789, 1367367, 4102101, 32361019, 97083057, 291249171]

約数ペア:

[(1, 291249171), (3, 97083057), (9, 32361019), (71, 4102101), (213, 1367367), (639, 455789)]