20998166

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5791}}^1$

素因数の和:5844

約数の個数: 24

約数和(自身を含む): 37636416

約数和(自身を除く): 16638250

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 5791, 11582, 40537, 81074, 214267, 283759, 428534, 567518, 1499869, 2999738, 10499083, 20998166]

約数ペア:

[(1, 20998166), (2, 10499083), (7, 2999738), (14, 1499869), (37, 567518), (49, 428534), (74, 283759), (98, 214267), (259, 81074), (518, 40537), (1813, 11582), (3626, 5791)]