21375992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{541}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 43902000

約数和(自身を除く): 22526008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 449, 541, 898, 1082, 1796, 2164, 3592, 4328, 4939, 5951, 9878, 11902, 19756, 23804, 39512, 47608, 242909, 485818, 971636, 1943272, 2671999, 5343998, 10687996, 21375992]

約数ペア:

[(1, 21375992), (2, 10687996), (4, 5343998), (8, 2671999), (11, 1943272), (22, 971636), (44, 485818), (88, 242909), (449, 47608), (541, 39512), (898, 23804), (1082, 19756), (1796, 11902), (2164, 9878), (3592, 5951), (4328, 4939)]