21646880

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{701}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 51479064

約数和(自身を除く): 29832184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 386, 701, 772, 965, 1402, 1544, 1930, 2804, 3088, 3505, 3860, 5608, 6176, 7010, 7720, 11216, 14020, 15440, 22432, 28040, 30880, 56080, 112160, 135293, 270586, 541172, 676465, 1082344, 1352930, 2164688, 2705860, 4329376, 5411720, 10823440, 21646880]

約数ペア:

[(1, 21646880), (2, 10823440), (4, 5411720), (5, 4329376), (8, 2705860), (10, 2164688), (16, 1352930), (20, 1082344), (32, 676465), (40, 541172), (80, 270586), (160, 135293), (193, 112160), (386, 56080), (701, 30880), (772, 28040), (965, 22432), (1402, 15440), (1544, 14020), (1930, 11216), (2804, 7720), (3088, 7010), (3505, 6176), (3860, 5608)]