278340789

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1\times {\mathrm{2731}}^1$

素因数の和:3428

約数の個数: 16

約数和(自身を含む): 378851904

約数和(自身を除く): 100511115

約数列:

[1, 3, 53, 159, 641, 1923, 2731, 8193, 33973, 101919, 144743, 434229, 1750571, 5251713, 92780263, 278340789]

約数ペア:

[(1, 278340789), (3, 92780263), (53, 5251713), (159, 1750571), (641, 434229), (1923, 144743), (2731, 101919), (8193, 33973)]