3981021

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{997}}^1$

素因数の和:1033

約数の個数: 16

約数和(自身を含む): 5844288

約数和(自身を除く): 1863267

約数列:

[1, 3, 11, 33, 121, 363, 997, 1331, 2991, 3993, 10967, 32901, 120637, 361911, 1327007, 3981021]

約数ペア:

[(1, 3981021), (3, 1327007), (11, 361911), (33, 120637), (121, 32901), (363, 10967), (997, 3993), (1331, 2991)]