20656216

素因数分解:

$2^3\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1063}}^1$

素因数の和:1423

約数の個数: 32

約数和(自身を含む): 44432640

約数和(自身を除く): 23776424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 347, 694, 1063, 1388, 2126, 2429, 2776, 4252, 4858, 7441, 8504, 9716, 14882, 19432, 29764, 59528, 368861, 737722, 1475444, 2582027, 2950888, 5164054, 10328108, 20656216]

約数ペア:

[(1, 20656216), (2, 10328108), (4, 5164054), (7, 2950888), (8, 2582027), (14, 1475444), (28, 737722), (56, 368861), (347, 59528), (694, 29764), (1063, 19432), (1388, 14882), (2126, 9716), (2429, 8504), (2776, 7441), (4252, 4858)]