20311863

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{419}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 11863497

約数列:

[1, 3, 11, 13, 33, 39, 113, 143, 339, 419, 429, 1243, 1257, 1469, 3729, 4407, 4609, 5447, 13827, 16159, 16341, 47347, 48477, 59917, 142041, 179751, 520817, 615511, 1562451, 1846533, 6770621, 20311863]

約数ペア:

[(1, 20311863), (3, 6770621), (11, 1846533), (13, 1562451), (33, 615511), (39, 520817), (113, 179751), (143, 142041), (339, 59917), (419, 48477), (429, 47347), (1243, 16341), (1257, 16159), (1469, 13827), (3729, 5447), (4407, 4609)]