20888978157

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1543}}^1\times {\mathrm{4657}}^1$

素因数の和:6242

約数の個数: 48

約数和(自身を含む): 33658335360

約数和(自身を除く): 12769357203

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 1543, 2907, 4629, 4657, 13887, 13971, 26231, 29317, 41913, 78693, 79169, 87951, 88483, 236079, 237507, 263853, 265449, 498389, 712521, 796347, 1495167, 1504211, 4485501, 4512633, 7185751, 13537899, 21557253, 64671759, 122157767, 136529269, 366473301, 409587807, 1099419903, 1228763421, 2320997573, 6962992719, 20888978157]

約数ペア:

[(1, 20888978157), (3, 6962992719), (9, 2320997573), (17, 1228763421), (19, 1099419903), (51, 409587807), (57, 366473301), (153, 136529269), (171, 122157767), (323, 64671759), (969, 21557253), (1543, 13537899), (2907, 7185751), (4629, 4512633), (4657, 4485501), (13887, 1504211), (13971, 1495167), (26231, 796347), (29317, 712521), (41913, 498389), (78693, 265449), (79169, 263853), (87951, 237507), (88483, 236079)]