1291383

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 20

約数和(自身を含む): 1960200

約数和(自身を除く): 668817

約数列:

[1, 3, 9, 27, 81, 107, 149, 321, 447, 963, 1341, 2889, 4023, 8667, 12069, 15943, 47829, 143487, 430461, 1291383]

約数ペア:

[(1, 1291383), (3, 430461), (9, 143487), (27, 47829), (81, 15943), (107, 12069), (149, 8667), (321, 4023), (447, 2889), (963, 1341)]