20812493

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1481}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 3089203

約数列:

[1, 13, 23, 47, 299, 611, 1081, 1481, 14053, 19253, 34063, 69607, 442819, 904891, 1600961, 20812493]

約数ペア:

[(1, 20812493), (13, 1600961), (23, 904891), (47, 442819), (299, 69607), (611, 34063), (1081, 19253), (1481, 14053)]