20505627

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:184

約数の個数: 36

約数和(自身を含む): 31919160

約数和(自身を除く): 11413533

約数列:

[1, 3, 9, 23, 59, 69, 73, 177, 207, 219, 529, 531, 657, 1357, 1587, 1679, 4071, 4307, 4761, 5037, 12213, 12921, 15111, 31211, 38617, 38763, 93633, 99061, 115851, 280899, 297183, 347553, 891549, 2278403, 6835209, 20505627]

約数ペア:

[(1, 20505627), (3, 6835209), (9, 2278403), (23, 891549), (59, 347553), (69, 297183), (73, 280899), (177, 115851), (207, 99061), (219, 93633), (529, 38763), (531, 38617), (657, 31211), (1357, 15111), (1587, 12921), (1679, 12213), (4071, 5037), (4307, 4761)]