21000746444

素因数分解:

$2^2\times {\mathrm{211}}^1\times {\mathrm{1193}}^1\times {\mathrm{20857}}^1$

素因数の和:22265

約数の個数: 24

約数和(自身を含む): 36958206768

約数和(自身を除く): 15957460324

約数列:

[1, 2, 4, 211, 422, 844, 1193, 2386, 4772, 20857, 41714, 83428, 251723, 503446, 1006892, 4400827, 8801654, 17603308, 24882401, 49764802, 99529604, 5250186611, 10500373222, 21000746444]

約数ペア:

[(1, 21000746444), (2, 10500373222), (4, 5250186611), (211, 99529604), (422, 49764802), (844, 24882401), (1193, 17603308), (2386, 8801654), (4772, 4400827), (20857, 1006892), (41714, 503446), (83428, 251723)]