19968552

素因数分解:

$2^3\times 3^3\times {\mathrm{193}}^1\times {\mathrm{479}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 55872000

約数和(自身を除く): 35903448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 193, 216, 386, 479, 579, 772, 958, 1158, 1437, 1544, 1737, 1916, 2316, 2874, 3474, 3832, 4311, 4632, 5211, 5748, 6948, 8622, 10422, 11496, 12933, 13896, 17244, 20844, 25866, 34488, 41688, 51732, 92447, 103464, 184894, 277341, 369788, 554682, 739576, 832023, 1109364, 1664046, 2218728, 2496069, 3328092, 4992138, 6656184, 9984276, 19968552]

約数ペア:

[(1, 19968552), (2, 9984276), (3, 6656184), (4, 4992138), (6, 3328092), (8, 2496069), (9, 2218728), (12, 1664046), (18, 1109364), (24, 832023), (27, 739576), (36, 554682), (54, 369788), (72, 277341), (108, 184894), (193, 103464), (216, 92447), (386, 51732), (479, 41688), (579, 34488), (772, 25866), (958, 20844), (1158, 17244), (1437, 13896), (1544, 12933), (1737, 11496), (1916, 10422), (2316, 8622), (2874, 6948), (3474, 5748), (3832, 5211), (4311, 4632)]