259217007

素因数分解:

$3^1\times 7^2\times {\mathrm{1763381}}^1$

素因数の和:1763398

約数の個数: 12

約数和(自身を含む): 402051096

約数和(自身を除く): 142834089

約数列:

[1, 3, 7, 21, 49, 147, 1763381, 5290143, 12343667, 37031001, 86405669, 259217007]

約数ペア:

[(1, 259217007), (3, 86405669), (7, 37031001), (21, 12343667), (49, 5290143), (147, 1763381)]