13555521

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2089}}^1$

素因数の和:2205

約数の個数: 24

約数和(自身を含む): 22605440

約数和(自身を除く): 9049919

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2089, 2163, 6267, 6489, 14623, 18801, 43869, 131607, 215167, 645501, 1506169, 1936503, 4518507, 13555521]

約数ペア:

[(1, 13555521), (3, 4518507), (7, 1936503), (9, 1506169), (21, 645501), (63, 215167), (103, 131607), (309, 43869), (721, 18801), (927, 14623), (2089, 6489), (2163, 6267)]