28745213

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 34774560

約数和(自身を除く): 6029347

約数列:

[1, 7, 49, 59, 61, 163, 413, 427, 1141, 2891, 2989, 3599, 7987, 9617, 9943, 25193, 67319, 69601, 176351, 471233, 487207, 586637, 4106459, 28745213]

約数ペア:

[(1, 28745213), (7, 4106459), (49, 586637), (59, 487207), (61, 471233), (163, 176351), (413, 69601), (427, 67319), (1141, 25193), (2891, 9943), (2989, 9617), (3599, 7987)]