13231281

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^2\times {\mathrm{181}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 20622784

約数和(自身を除く): 7391503

約数列:

[1, 3, 7, 21, 59, 177, 181, 413, 543, 1239, 1267, 3481, 3801, 10443, 10679, 24367, 32037, 73101, 74753, 224259, 630061, 1890183, 4410427, 13231281]

約数ペア:

[(1, 13231281), (3, 4410427), (7, 1890183), (21, 630061), (59, 224259), (177, 74753), (181, 73101), (413, 32037), (543, 24367), (1239, 10679), (1267, 10443), (3481, 3801)]