212715

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 383760

約数和(自身を除く): 171045

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 163, 261, 435, 489, 815, 1305, 1467, 2445, 4727, 7335, 14181, 23635, 42543, 70905, 212715]

約数ペア:

[(1, 212715), (3, 70905), (5, 42543), (9, 23635), (15, 14181), (29, 7335), (45, 4727), (87, 2445), (145, 1467), (163, 1305), (261, 815), (435, 489)]