81212719

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{1543}}^1$

素因数の和:1726

約数の個数: 16

約数和(自身を含む): 95060992

約数和(自身を除く): 13848273

約数列:

[1, 7, 73, 103, 511, 721, 1543, 7519, 10801, 52633, 112639, 158929, 788473, 1112503, 11601817, 81212719]

約数ペア:

[(1, 81212719), (7, 11601817), (73, 1112503), (103, 788473), (511, 158929), (721, 112639), (1543, 52633), (7519, 10801)]