20581055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12071}}^1$

素因数の和:12118

約数の個数: 16

約数和(自身を含む): 27813888

約数和(自身を除く): 7232833

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12071, 60355, 132781, 374201, 663905, 1871005, 4116211, 20581055]

約数ペア:

[(1, 20581055), (5, 4116211), (11, 1871005), (31, 663905), (55, 374201), (155, 132781), (341, 60355), (1705, 12071)]