21971394

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:831

約数の個数: 48

約数和(自身を含む): 50424192

約数和(自身を除く): 28452798

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 73, 138, 146, 207, 219, 414, 438, 657, 727, 1314, 1454, 1679, 2181, 3358, 4362, 5037, 6543, 10074, 13086, 15111, 16721, 30222, 33442, 50163, 53071, 100326, 106142, 150489, 159213, 300978, 318426, 477639, 955278, 1220633, 2441266, 3661899, 7323798, 10985697, 21971394]

約数ペア:

[(1, 21971394), (2, 10985697), (3, 7323798), (6, 3661899), (9, 2441266), (18, 1220633), (23, 955278), (46, 477639), (69, 318426), (73, 300978), (138, 159213), (146, 150489), (207, 106142), (219, 100326), (414, 53071), (438, 50163), (657, 33442), (727, 30222), (1314, 16721), (1454, 15111), (1679, 13086), (2181, 10074), (3358, 6543), (4362, 5037)]