638535747

素因数分解:

$3^1\times {\mathrm{223}}^1\times {\mathrm{307}}^1\times {\mathrm{3109}}^1$

素因数の和:3642

約数の個数: 16

約数和(自身を含む): 858260480

約数和(自身を除く): 219724733

約数列:

[1, 3, 223, 307, 669, 921, 3109, 9327, 68461, 205383, 693307, 954463, 2079921, 2863389, 212845249, 638535747]

約数ペア:

[(1, 638535747), (3, 212845249), (223, 2863389), (307, 2079921), (669, 954463), (921, 693307), (3109, 205383), (9327, 68461)]