9991262

素因数分解:

$2^1\times {\mathrm{71}}^2\times {\mathrm{991}}^1$

素因数の和:1135

約数の個数: 12

約数和(自身を含む): 15216288

約数和(自身を除く): 5225026

約数列:

[1, 2, 71, 142, 991, 1982, 5041, 10082, 70361, 140722, 4995631, 9991262]

約数ペア:

[(1, 9991262), (2, 4995631), (71, 140722), (142, 70361), (991, 10082), (1982, 5041)]