21888345

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17581}}^1$

素因数の和:17672

約数の個数: 16

約数和(自身を含む): 35445312

約数和(自身を除く): 13556967

約数列:

[1, 3, 5, 15, 83, 249, 415, 1245, 17581, 52743, 87905, 263715, 1459223, 4377669, 7296115, 21888345]

約数ペア:

[(1, 21888345), (3, 7296115), (5, 4377669), (15, 1459223), (83, 263715), (249, 87905), (415, 52743), (1245, 17581)]