20494881

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{859}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 32466720

約数和(自身を除く): 11971839

約数列:

[1, 3, 9, 11, 33, 99, 241, 723, 859, 2169, 2577, 2651, 7731, 7953, 9449, 23859, 28347, 85041, 207019, 621057, 1863171, 2277209, 6831627, 20494881]

約数ペア:

[(1, 20494881), (3, 6831627), (9, 2277209), (11, 1863171), (33, 621057), (99, 207019), (241, 85041), (723, 28347), (859, 23859), (2169, 9449), (2577, 7953), (2651, 7731)]