21926560

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3245

約数の個数: 48

約数和(自身を含む): 53022816

約数和(自身を除く): 31096256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3187, 3440, 6374, 6880, 12748, 15935, 25496, 31870, 50992, 63740, 101984, 127480, 137041, 254960, 274082, 509920, 548164, 685205, 1096328, 1370410, 2192656, 2740820, 4385312, 5481640, 10963280, 21926560]

約数ペア:

[(1, 21926560), (2, 10963280), (4, 5481640), (5, 4385312), (8, 2740820), (10, 2192656), (16, 1370410), (20, 1096328), (32, 685205), (40, 548164), (43, 509920), (80, 274082), (86, 254960), (160, 137041), (172, 127480), (215, 101984), (344, 63740), (430, 50992), (688, 31870), (860, 25496), (1376, 15935), (1720, 12748), (3187, 6880), (3440, 6374)]