21679428

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{13187}}^1$

素因数の和:13331

約数の個数: 24

約数和(自身を含む): 50958432

約数和(自身を除く): 29279004

約数列:

[1, 2, 3, 4, 6, 12, 137, 274, 411, 548, 822, 1644, 13187, 26374, 39561, 52748, 79122, 158244, 1806619, 3613238, 5419857, 7226476, 10839714, 21679428]

約数ペア:

[(1, 21679428), (2, 10839714), (3, 7226476), (4, 5419857), (6, 3613238), (12, 1806619), (137, 158244), (274, 79122), (411, 52748), (548, 39561), (822, 26374), (1644, 13187)]