20874495

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 34444800

約数和(自身を除く): 13570305

約数列:

[1, 3, 5, 15, 59, 103, 177, 229, 295, 309, 515, 687, 885, 1145, 1545, 3435, 6077, 13511, 18231, 23587, 30385, 40533, 67555, 70761, 91155, 117935, 202665, 353805, 1391633, 4174899, 6958165, 20874495]

約数ペア:

[(1, 20874495), (3, 6958165), (5, 4174899), (15, 1391633), (59, 353805), (103, 202665), (177, 117935), (229, 91155), (295, 70761), (309, 67555), (515, 40533), (687, 30385), (885, 23587), (1145, 18231), (1545, 13511), (3435, 6077)]