31219305

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4327}}^1$

素因数の和:4385

約数の個数: 32

約数和(自身を含む): 55259904

約数和(自身を除く): 24040599

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 4327, 7215, 12981, 21635, 56251, 64905, 160099, 168753, 281255, 480297, 800495, 843765, 2081287, 2401485, 6243861, 10406435, 31219305]

約数ペア:

[(1, 31219305), (3, 10406435), (5, 6243861), (13, 2401485), (15, 2081287), (37, 843765), (39, 800495), (65, 480297), (111, 281255), (185, 168753), (195, 160099), (481, 64905), (555, 56251), (1443, 21635), (2405, 12981), (4327, 7215)]