81587023

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1181}}^1$

素因数の和:1398

約数の個数: 16

約数和(自身を含む): 95316480

約数和(自身を除く): 13729457

約数列:

[1, 7, 71, 139, 497, 973, 1181, 8267, 9869, 69083, 83851, 164159, 586957, 1149113, 11655289, 81587023]

約数ペア:

[(1, 81587023), (7, 11655289), (71, 1149113), (139, 586957), (497, 164159), (973, 83851), (1181, 69083), (8267, 9869)]