21525171

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1987}}^1$

素因数の和:2170

約数の個数: 16

約数和(自身を含む): 30153984

約数和(自身を除く): 8628813

約数列:

[1, 3, 23, 69, 157, 471, 1987, 3611, 5961, 10833, 45701, 137103, 311959, 935877, 7175057, 21525171]

約数ペア:

[(1, 21525171), (3, 7175057), (23, 935877), (69, 311959), (157, 137103), (471, 45701), (1987, 10833), (3611, 5961)]