28369803

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 47480832

約数和(自身を除く): 19111029

約数列:

[1, 3, 7, 11, 21, 33, 77, 191, 231, 573, 643, 1337, 1929, 2101, 4011, 4501, 6303, 7073, 13503, 14707, 21219, 44121, 49511, 122813, 148533, 368439, 859691, 1350943, 2579073, 4052829, 9456601, 28369803]

約数ペア:

[(1, 28369803), (3, 9456601), (7, 4052829), (11, 2579073), (21, 1350943), (33, 859691), (77, 368439), (191, 148533), (231, 122813), (573, 49511), (643, 44121), (1337, 21219), (1929, 14707), (2101, 13503), (4011, 7073), (4501, 6303)]