21819184

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12511}}^1$

素因数の和:12628

約数の個数: 20

約数和(自身を含む): 42665920

約数和(自身を除く): 20846736

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12511, 25022, 50044, 100088, 200176, 1363699, 2727398, 5454796, 10909592, 21819184]

約数ペア:

[(1, 21819184), (2, 10909592), (4, 5454796), (8, 2727398), (16, 1363699), (109, 200176), (218, 100088), (436, 50044), (872, 25022), (1744, 12511)]