1315521

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 20

約数和(自身を含む): 1996500

約数和(自身を除く): 680979

約数列:

[1, 3, 9, 27, 81, 109, 149, 327, 447, 981, 1341, 2943, 4023, 8829, 12069, 16241, 48723, 146169, 438507, 1315521]

約数ペア:

[(1, 1315521), (3, 438507), (9, 146169), (27, 48723), (81, 16241), (109, 12069), (149, 8829), (327, 4023), (447, 2943), (981, 1341)]