20272131

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 14322429

約数列:

[1, 3, 9, 11, 23, 29, 33, 69, 87, 99, 207, 253, 261, 307, 319, 667, 759, 921, 957, 2001, 2277, 2763, 2871, 3377, 6003, 7061, 7337, 8903, 10131, 21183, 22011, 26709, 30393, 63549, 66033, 77671, 80127, 97933, 204769, 233013, 293799, 614307, 699039, 881397, 1842921, 2252459, 6757377, 20272131]

約数ペア:

[(1, 20272131), (3, 6757377), (9, 2252459), (11, 1842921), (23, 881397), (29, 699039), (33, 614307), (69, 293799), (87, 233013), (99, 204769), (207, 97933), (253, 80127), (261, 77671), (307, 66033), (319, 63549), (667, 30393), (759, 26709), (921, 22011), (957, 21183), (2001, 10131), (2277, 8903), (2763, 7337), (2871, 7061), (3377, 6003)]