21705307

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:582

約数の個数: 16

約数和(自身を含む): 24575040

約数和(自身を除く): 2869733

約数列:

[1, 13, 23, 229, 299, 317, 2977, 4121, 5267, 7291, 68471, 72593, 94783, 943709, 1669639, 21705307]

約数ペア:

[(1, 21705307), (13, 1669639), (23, 943709), (229, 94783), (299, 72593), (317, 68471), (2977, 7291), (4121, 5267)]