210915

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 24

約数和(自身を含む): 377520

約数和(自身を除く): 166605

約数列:

[1, 3, 5, 9, 15, 43, 45, 109, 129, 215, 327, 387, 545, 645, 981, 1635, 1935, 4687, 4905, 14061, 23435, 42183, 70305, 210915]

約数ペア:

[(1, 210915), (3, 70305), (5, 42183), (9, 23435), (15, 14061), (43, 4905), (45, 4687), (109, 1935), (129, 1635), (215, 981), (327, 645), (387, 545)]