668821779

素因数分解:

$3^8\times {\mathrm{101939}}^1$

素因数の和:101963

約数の個数: 18

約数和(自身を含む): 1003191540

約数和(自身を除く): 334369761

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 6561, 101939, 305817, 917451, 2752353, 8257059, 24771177, 74313531, 222940593, 668821779]

約数ペア:

[(1, 668821779), (3, 222940593), (9, 74313531), (27, 24771177), (81, 8257059), (243, 2752353), (729, 917451), (2187, 305817), (6561, 101939)]