20864144

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1741}}^1$

素因数の和:1863

約数の個数: 40

約数和(自身を含む): 46657728

約数和(自身を除く): 25793584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1712, 1741, 2996, 3482, 5992, 6964, 11984, 12187, 13928, 24374, 27856, 48748, 97496, 186287, 194992, 372574, 745148, 1304009, 1490296, 2608018, 2980592, 5216036, 10432072, 20864144]

約数ペア:

[(1, 20864144), (2, 10432072), (4, 5216036), (7, 2980592), (8, 2608018), (14, 1490296), (16, 1304009), (28, 745148), (56, 372574), (107, 194992), (112, 186287), (214, 97496), (428, 48748), (749, 27856), (856, 24374), (1498, 13928), (1712, 12187), (1741, 11984), (2996, 6964), (3482, 5992)]