21679205185

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{1427}}^1\times {\mathrm{25111}}^1$

素因数の和:26565

約数の個数: 24

約数和(自身を含む): 28616228928

約数和(自身を除く): 6937023743

約数列:

[1, 5, 11, 55, 121, 605, 1427, 7135, 15697, 25111, 78485, 125555, 172667, 276221, 863335, 1381105, 3038431, 15192155, 35833397, 179166985, 394167367, 1970836835, 4335841037, 21679205185]

約数ペア:

[(1, 21679205185), (5, 4335841037), (11, 1970836835), (55, 394167367), (121, 179166985), (605, 35833397), (1427, 15192155), (7135, 3038431), (15697, 1381105), (25111, 863335), (78485, 276221), (125555, 172667)]