18133521

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21061}}^1$

素因数の和:21112

約数の個数: 16

約数和(自身を含む): 28307328

約数和(自身を除く): 10173807

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21061, 63183, 147427, 442281, 863501, 2590503, 6044507, 18133521]

約数ペア:

[(1, 18133521), (3, 6044507), (7, 2590503), (21, 863501), (41, 442281), (123, 147427), (287, 63183), (861, 21061)]