20432907

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:704

約数の個数: 36

約数和(自身を含む): 33611760

約数和(自身を除く): 13178853

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 121, 261, 319, 363, 647, 957, 1089, 1941, 2871, 3509, 5823, 7117, 10527, 18763, 21351, 31581, 56289, 64053, 78287, 168867, 206393, 234861, 619179, 704583, 1857537, 2270323, 6810969, 20432907]

約数ペア:

[(1, 20432907), (3, 6810969), (9, 2270323), (11, 1857537), (29, 704583), (33, 619179), (87, 234861), (99, 206393), (121, 168867), (261, 78287), (319, 64053), (363, 56289), (647, 31581), (957, 21351), (1089, 18763), (1941, 10527), (2871, 7117), (3509, 5823)]