20475711

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4129}}^1$

素因数の和:4183

約数の個数: 24

約数和(自身を含む): 32214000

約数和(自身を除く): 11738289

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4129, 4959, 12387, 37161, 78451, 119741, 235353, 359223, 706059, 1077669, 2275079, 6825237, 20475711]

約数ペア:

[(1, 20475711), (3, 6825237), (9, 2275079), (19, 1077669), (29, 706059), (57, 359223), (87, 235353), (171, 119741), (261, 78451), (551, 37161), (1653, 12387), (4129, 4959)]