18656697

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 25546752

約数和(自身を除く): 6890055

約数列:

[1, 3, 47, 141, 307, 431, 921, 1293, 14429, 20257, 43287, 60771, 132317, 396951, 6218899, 18656697]

約数ペア:

[(1, 18656697), (3, 6218899), (47, 396951), (141, 132317), (307, 60771), (431, 43287), (921, 20257), (1293, 14429)]