81132989

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{757}}^1$

素因数の和:1076

約数の個数: 16

約数和(自身を含む): 94743936

約数和(自身を除く): 13610947

約数列:

[1, 7, 61, 251, 427, 757, 1757, 5299, 15311, 46177, 107177, 190007, 323239, 1330049, 11590427, 81132989]

約数ペア:

[(1, 81132989), (7, 11590427), (61, 1330049), (251, 323239), (427, 190007), (757, 107177), (1757, 46177), (5299, 15311)]