9131787

素因数分解:

$3^2\times 7^2\times {\mathrm{20707}}^1$

素因数の和:20727

約数の個数: 18

約数和(自身を含む): 15344628

約数和(自身を除く): 6212841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 20707, 62121, 144949, 186363, 434847, 1014643, 1304541, 3043929, 9131787]

約数ペア:

[(1, 9131787), (3, 3043929), (7, 1304541), (9, 1014643), (21, 434847), (49, 186363), (63, 144949), (147, 62121), (441, 20707)]