20943153

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 38578176

約数和(自身を除く): 17635023

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 63, 77, 99, 141, 231, 329, 423, 517, 643, 693, 987, 1551, 1929, 2961, 3619, 4501, 4653, 5787, 7073, 10857, 13503, 21219, 30221, 32571, 40509, 49511, 63657, 90663, 148533, 211547, 271989, 332431, 445599, 634641, 997293, 1903923, 2327017, 2991879, 6981051, 20943153]

約数ペア:

[(1, 20943153), (3, 6981051), (7, 2991879), (9, 2327017), (11, 1903923), (21, 997293), (33, 634641), (47, 445599), (63, 332431), (77, 271989), (99, 211547), (141, 148533), (231, 90663), (329, 63657), (423, 49511), (517, 40509), (643, 32571), (693, 30221), (987, 21219), (1551, 13503), (1929, 10857), (2961, 7073), (3619, 5787), (4501, 4653)]