20643345

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5527}}^1$

素因数の和:5621

約数の個数: 24

約数和(自身を含む): 36219456

約数和(自身を除く): 15576111

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5527, 16581, 27635, 49743, 82905, 248715, 458741, 1376223, 2293705, 4128669, 6881115, 20643345]

約数ペア:

[(1, 20643345), (3, 6881115), (5, 4128669), (9, 2293705), (15, 1376223), (45, 458741), (83, 248715), (249, 82905), (415, 49743), (747, 27635), (1245, 16581), (3735, 5527)]