438507

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:267

約数の個数: 16

約数和(自身を含む): 660000

約数和(自身を除く): 221493

約数列:

[1, 3, 9, 27, 109, 149, 327, 447, 981, 1341, 2943, 4023, 16241, 48723, 146169, 438507]

約数ペア:

[(1, 438507), (3, 146169), (9, 48723), (27, 16241), (109, 4023), (149, 2943), (327, 1341), (447, 981)]