20226987

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1181}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 32084208

約数和(自身を除く): 11857221

約数列:

[1, 3, 9, 11, 33, 99, 173, 519, 1181, 1557, 1903, 3543, 5709, 10629, 12991, 17127, 38973, 116919, 204313, 612939, 1838817, 2247443, 6742329, 20226987]

約数ペア:

[(1, 20226987), (3, 6742329), (9, 2247443), (11, 1838817), (33, 612939), (99, 204313), (173, 116919), (519, 38973), (1181, 17127), (1557, 12991), (1903, 10629), (3543, 5709)]