68931387

素因数分解:

$3^2\times 7^2\times {\mathrm{156307}}^1$

素因数の和:156327

約数の個数: 18

約数和(自身を含む): 115824228

約数和(自身を除く): 46892841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 156307, 468921, 1094149, 1406763, 3282447, 7659043, 9847341, 22977129, 68931387]

約数ペア:

[(1, 68931387), (3, 22977129), (7, 9847341), (9, 7659043), (21, 3282447), (49, 1406763), (63, 1094149), (147, 468921), (441, 156307)]