640534143

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{28351}}^1$

素因数の和:28814

約数の個数: 16

約数和(自身を含む): 906356736

約数和(自身を除く): 265822593

約数列:

[1, 3, 17, 51, 443, 1329, 7531, 22593, 28351, 85053, 481967, 1445901, 12559493, 37678479, 213511381, 640534143]

約数ペア:

[(1, 640534143), (3, 213511381), (17, 37678479), (51, 12559493), (443, 1445901), (1329, 481967), (7531, 85053), (22593, 28351)]