20521197

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2927}}^1$

素因数の和:2993

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 11452563

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 2927, 7011, 8781, 26343, 55613, 120007, 166839, 360021, 500517, 1080063, 2280133, 6840399, 20521197]

約数ペア:

[(1, 20521197), (3, 6840399), (9, 2280133), (19, 1080063), (41, 500517), (57, 360021), (123, 166839), (171, 120007), (369, 55613), (779, 26343), (2337, 8781), (2927, 7011)]