20854713

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 31021984

約数和(自身を除く): 10167271

約数列:

[1, 3, 11, 33, 73, 121, 219, 363, 787, 803, 2361, 2409, 8657, 8833, 25971, 26499, 57451, 95227, 172353, 285681, 631961, 1895883, 6951571, 20854713]

約数ペア:

[(1, 20854713), (3, 6951571), (11, 1895883), (33, 631961), (73, 285681), (121, 172353), (219, 95227), (363, 57451), (787, 26499), (803, 25971), (2361, 8833), (2409, 8657)]