19719196

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 41065920

約数和(自身を除く): 21346724

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 89, 164, 178, 193, 287, 356, 386, 574, 623, 772, 1148, 1246, 1351, 2492, 2702, 3649, 5404, 7298, 7913, 14596, 15826, 17177, 25543, 31652, 34354, 51086, 55391, 68708, 102172, 110782, 120239, 221564, 240478, 480956, 704257, 1408514, 2817028, 4929799, 9859598, 19719196]

約数ペア:

[(1, 19719196), (2, 9859598), (4, 4929799), (7, 2817028), (14, 1408514), (28, 704257), (41, 480956), (82, 240478), (89, 221564), (164, 120239), (178, 110782), (193, 102172), (287, 68708), (356, 55391), (386, 51086), (574, 34354), (623, 31652), (772, 25543), (1148, 17177), (1246, 15826), (1351, 14596), (2492, 7913), (2702, 7298), (3649, 5404)]