20441259

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 36

約数和(自身を含む): 32566560

約数和(自身を除く): 12125301

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 271, 289, 493, 813, 867, 1479, 2439, 2601, 4437, 4607, 7859, 8381, 13821, 23577, 25143, 41463, 70731, 75429, 78319, 133603, 234957, 400809, 704871, 1202427, 2271251, 6813753, 20441259]

約数ペア:

[(1, 20441259), (3, 6813753), (9, 2271251), (17, 1202427), (29, 704871), (51, 400809), (87, 234957), (153, 133603), (261, 78319), (271, 75429), (289, 70731), (493, 41463), (813, 25143), (867, 23577), (1479, 13821), (2439, 8381), (2601, 7859), (4437, 4607)]