21004251

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:586

約数の個数: 16

約数和(自身を含む): 28454400

約数和(自身を除く): 7450149

約数列:

[1, 3, 151, 199, 233, 453, 597, 699, 30049, 35183, 46367, 90147, 105549, 139101, 7001417, 21004251]

約数ペア:

[(1, 21004251), (3, 7001417), (151, 139101), (199, 105549), (233, 90147), (453, 46367), (597, 35183), (699, 30049)]