20517436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1667}}^1$

素因数の和:1869

約数の個数: 24

約数和(自身を含む): 38250576

約数和(自身を除く): 17733140

約数列:

[1, 2, 4, 17, 34, 68, 181, 362, 724, 1667, 3077, 3334, 6154, 6668, 12308, 28339, 56678, 113356, 301727, 603454, 1206908, 5129359, 10258718, 20517436]

約数ペア:

[(1, 20517436), (2, 10258718), (4, 5129359), (17, 1206908), (34, 603454), (68, 301727), (181, 113356), (362, 56678), (724, 28339), (1667, 12308), (3077, 6668), (3334, 6154)]