20880555

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{19069}}^1$

素因数の和:19150

約数の個数: 16

約数和(自身を含む): 33868320

約数和(自身を除く): 12987765

約数列:

[1, 3, 5, 15, 73, 219, 365, 1095, 19069, 57207, 95345, 286035, 1392037, 4176111, 6960185, 20880555]

約数ペア:

[(1, 20880555), (3, 6960185), (5, 4176111), (15, 1392037), (73, 286035), (219, 95345), (365, 57207), (1095, 19069)]