20585972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42533}}^1$

素因数の和:42559

約数の個数: 18

約数和(自身を含む): 39599154

約数和(自身を除く): 19013182

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42533, 85066, 170132, 467863, 935726, 1871452, 5146493, 10292986, 20585972]

約数ペア:

[(1, 20585972), (2, 10292986), (4, 5146493), (11, 1871452), (22, 935726), (44, 467863), (121, 170132), (242, 85066), (484, 42533)]