20999808

素因数分解:

$2^7\times 3^2\times {\mathrm{18229}}^1$

素因数の和:18249

約数の個数: 48

約数和(自身を含む): 60432450

約数和(自身を除く): 39432642

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 288, 384, 576, 1152, 18229, 36458, 54687, 72916, 109374, 145832, 164061, 218748, 291664, 328122, 437496, 583328, 656244, 874992, 1166656, 1312488, 1749984, 2333312, 2624976, 3499968, 5249952, 6999936, 10499904, 20999808]

約数ペア:

[(1, 20999808), (2, 10499904), (3, 6999936), (4, 5249952), (6, 3499968), (8, 2624976), (9, 2333312), (12, 1749984), (16, 1312488), (18, 1166656), (24, 874992), (32, 656244), (36, 583328), (48, 437496), (64, 328122), (72, 291664), (96, 218748), (128, 164061), (144, 145832), (192, 109374), (288, 72916), (384, 54687), (576, 36458), (1152, 18229)]