20670651

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1109}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 31746000

約数和(自身を除く): 11075349

約数列:

[1, 3, 9, 19, 57, 109, 171, 327, 981, 1109, 2071, 3327, 6213, 9981, 18639, 21071, 63213, 120881, 189639, 362643, 1087929, 2296739, 6890217, 20670651]

約数ペア:

[(1, 20670651), (3, 6890217), (9, 2296739), (19, 1087929), (57, 362643), (109, 189639), (171, 120881), (327, 63213), (981, 21071), (1109, 18639), (2071, 9981), (3327, 6213)]