21968109

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1153}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 33304440

約数和(自身を除く): 11336331

約数列:

[1, 3, 9, 29, 73, 87, 219, 261, 657, 1153, 2117, 3459, 6351, 10377, 19053, 33437, 84169, 100311, 252507, 300933, 757521, 2440901, 7322703, 21968109]

約数ペア:

[(1, 21968109), (3, 7322703), (9, 2440901), (29, 757521), (73, 300933), (87, 252507), (219, 100311), (261, 84169), (657, 33437), (1153, 19053), (2117, 10377), (3459, 6351)]