20021661

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1023

約数の個数: 40

約数和(自身を含む): 34081344

約数和(自身を除く): 14059683

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 253, 297, 621, 759, 891, 977, 1863, 2277, 2931, 6831, 8793, 10747, 20493, 22471, 26379, 32241, 67413, 79137, 96723, 202239, 247181, 290169, 606717, 741543, 870507, 1820151, 2224629, 6673887, 20021661]

約数ペア:

[(1, 20021661), (3, 6673887), (9, 2224629), (11, 1820151), (23, 870507), (27, 741543), (33, 606717), (69, 290169), (81, 247181), (99, 202239), (207, 96723), (253, 79137), (297, 67413), (621, 32241), (759, 26379), (891, 22471), (977, 20493), (1863, 10747), (2277, 8793), (2931, 6831)]