208345059

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{136979}}^1$

素因数の和:137011

約数の個数: 18

約数和(自身を含む): 325875420

約数和(自身を除く): 117530361

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 136979, 410937, 1232811, 1780727, 5342181, 16026543, 23149451, 69448353, 208345059]

約数ペア:

[(1, 208345059), (3, 69448353), (9, 23149451), (13, 16026543), (39, 5342181), (117, 1780727), (169, 1232811), (507, 410937), (1521, 136979)]