20652345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65563}}^1$

素因数の和:65581

約数の個数: 24

約数和(自身を含む): 40911936

約数和(自身を除く): 20259591

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65563, 196689, 327815, 458941, 590067, 983445, 1376823, 2294705, 2950335, 4130469, 6884115, 20652345]

約数ペア:

[(1, 20652345), (3, 6884115), (5, 4130469), (7, 2950335), (9, 2294705), (15, 1376823), (21, 983445), (35, 590067), (45, 458941), (63, 327815), (105, 196689), (315, 65563)]