21331712

素因数分解:

$2^8\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:928

約数の個数: 36

約数和(自身を含む): 43046640

約数和(自身を除く): 21714928

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 412, 809, 824, 1618, 1648, 3236, 3296, 6472, 6592, 12944, 13184, 25888, 26368, 51776, 83327, 103552, 166654, 207104, 333308, 666616, 1333232, 2666464, 5332928, 10665856, 21331712]

約数ペア:

[(1, 21331712), (2, 10665856), (4, 5332928), (8, 2666464), (16, 1333232), (32, 666616), (64, 333308), (103, 207104), (128, 166654), (206, 103552), (256, 83327), (412, 51776), (809, 26368), (824, 25888), (1618, 13184), (1648, 12944), (3236, 6592), (3296, 6472)]