21000879805

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{439}}^1\times {\mathrm{131063}}^1$

素因数の和:131580

約数の個数: 16

約数和(自身を含む): 25604663040

約数和(自身を除く): 4603783235

約数列:

[1, 5, 73, 365, 439, 2195, 32047, 131063, 160235, 655315, 9567599, 47837995, 57536657, 287683285, 4200175961, 21000879805]

約数ペア:

[(1, 21000879805), (5, 4200175961), (73, 287683285), (365, 57536657), (439, 47837995), (2195, 9567599), (32047, 655315), (131063, 160235)]