20684548

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{499}}^1$

素因数の和:787

約数の個数: 24

約数和(自身を含む): 37268000

約数和(自身を除く): 16583452

約数列:

[1, 2, 4, 43, 86, 172, 241, 482, 499, 964, 998, 1996, 10363, 20726, 21457, 41452, 42914, 85828, 120259, 240518, 481036, 5171137, 10342274, 20684548]

約数ペア:

[(1, 20684548), (2, 10342274), (4, 5171137), (43, 481036), (86, 240518), (172, 120259), (241, 85828), (482, 42914), (499, 41452), (964, 21457), (998, 20726), (1996, 10363)]