18972866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 13375294

約数列:

[1, 2, 11, 22, 47, 59, 94, 118, 311, 517, 622, 649, 1034, 1298, 2773, 3421, 5546, 6842, 14617, 18349, 29234, 30503, 36698, 61006, 160787, 201839, 321574, 403678, 862403, 1724806, 9486433, 18972866]

約数ペア:

[(1, 18972866), (2, 9486433), (11, 1724806), (22, 862403), (47, 403678), (59, 321574), (94, 201839), (118, 160787), (311, 61006), (517, 36698), (622, 30503), (649, 29234), (1034, 18349), (1298, 14617), (2773, 6842), (3421, 5546)]