18493811

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:458

約数の個数: 16

約数和(自身を含む): 21638400

約数和(自身を除く): 3144589

約数列:

[1, 7, 83, 139, 229, 581, 973, 1603, 11537, 19007, 31831, 80759, 133049, 222817, 2641973, 18493811]

約数ペア:

[(1, 18493811), (7, 2641973), (83, 222817), (139, 133049), (229, 80759), (581, 31831), (973, 19007), (1603, 11537)]