21043724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3929}}^1$

素因数の和:4049

約数の個数: 24

約数和(自身を含む): 40054560

約数和(自身を除く): 19010836

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 3929, 5356, 7858, 15716, 51077, 102154, 204308, 404687, 809374, 1618748, 5260931, 10521862, 21043724]

約数ペア:

[(1, 21043724), (2, 10521862), (4, 5260931), (13, 1618748), (26, 809374), (52, 404687), (103, 204308), (206, 102154), (412, 51077), (1339, 15716), (2678, 7858), (3929, 5356)]