20676564

素因数分解:

$2^2\times 3^2\times {\mathrm{499}}^1\times {\mathrm{1151}}^1$

素因数の和:1660

約数の個数: 36

約数和(自身を含む): 52416000

約数和(自身を除く): 31739436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 499, 998, 1151, 1497, 1996, 2302, 2994, 3453, 4491, 4604, 5988, 6906, 8982, 10359, 13812, 17964, 20718, 41436, 574349, 1148698, 1723047, 2297396, 3446094, 5169141, 6892188, 10338282, 20676564]

約数ペア:

[(1, 20676564), (2, 10338282), (3, 6892188), (4, 5169141), (6, 3446094), (9, 2297396), (12, 1723047), (18, 1148698), (36, 574349), (499, 41436), (998, 20718), (1151, 17964), (1497, 13812), (1996, 10359), (2302, 8982), (2994, 6906), (3453, 5988), (4491, 4604)]