20778021

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5119}}^1$

素因数の和:5177

約数の個数: 24

約数和(自身を含む): 33546240

約数和(自身を除く): 12768219

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 5119, 15357, 46071, 56309, 168927, 209879, 506781, 629637, 1888911, 2308669, 6926007, 20778021]

約数ペア:

[(1, 20778021), (3, 6926007), (9, 2308669), (11, 1888911), (33, 629637), (41, 506781), (99, 209879), (123, 168927), (369, 56309), (451, 46071), (1353, 15357), (4059, 5119)]