21012731

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:982

約数の個数: 16

約数和(自身を含む): 23623488

約数和(自身を除く): 2610757

約数列:

[1, 17, 23, 61, 391, 881, 1037, 1403, 14977, 20263, 23851, 53741, 344471, 913597, 1236043, 21012731]

約数ペア:

[(1, 21012731), (17, 1236043), (23, 913597), (61, 344471), (391, 53741), (881, 23851), (1037, 20263), (1403, 14977)]