20017333

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 24441144

約数和(自身を除く): 4423811

約数列:

[1, 7, 37, 49, 61, 181, 259, 427, 1267, 1813, 2257, 2989, 6697, 8869, 11041, 15799, 46879, 77287, 110593, 328153, 408517, 541009, 2859619, 20017333]

約数ペア:

[(1, 20017333), (7, 2859619), (37, 541009), (49, 408517), (61, 328153), (181, 110593), (259, 77287), (427, 46879), (1267, 15799), (1813, 11041), (2257, 8869), (2989, 6697)]