81825913

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1499}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 98820000

約数和(自身を除く): 16994087

約数列:

[1, 13, 17, 19, 169, 221, 247, 323, 1499, 2873, 3211, 4199, 19487, 25483, 28481, 54587, 253331, 331279, 370253, 484177, 4306627, 4813289, 6294301, 81825913]

約数ペア:

[(1, 81825913), (13, 6294301), (17, 4813289), (19, 4306627), (169, 484177), (221, 370253), (247, 331279), (323, 253331), (1499, 54587), (2873, 28481), (3211, 25483), (4199, 19487)]