399618

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^2$

素因数の和:306

約数の個数: 18

約数和(自身を含む): 871689

約数和(自身を除く): 472071

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 447, 894, 1341, 2682, 22201, 44402, 66603, 133206, 199809, 399618]

約数ペア:

[(1, 399618), (2, 199809), (3, 133206), (6, 66603), (9, 44402), (18, 22201), (149, 2682), (298, 1341), (447, 894)]