20925213

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4423}}^1$

素因数の和:4528

約数の個数: 16

約数和(自身を含む): 29729280

約数和(自身を除く): 8804067

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4423, 4731, 13269, 84037, 252111, 367109, 1101327, 6975071, 20925213]

約数ペア:

[(1, 20925213), (3, 6975071), (19, 1101327), (57, 367109), (83, 252111), (249, 84037), (1577, 13269), (4423, 4731)]