21539697

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{2797}}^1$

素因数の和:2968

約数の個数: 16

約数和(自身を含む): 30621312

約数和(自身を除く): 9081615

約数列:

[1, 3, 17, 51, 151, 453, 2567, 2797, 7701, 8391, 47549, 142647, 422347, 1267041, 7179899, 21539697]

約数ペア:

[(1, 21539697), (3, 7179899), (17, 1267041), (51, 422347), (151, 142647), (453, 47549), (2567, 8391), (2797, 7701)]