18638786

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 24

約数和(自身を含む): 29729280

約数和(自身を除く): 11090494

約数列:

[1, 2, 23, 46, 79, 158, 223, 446, 529, 1058, 1817, 3634, 5129, 10258, 17617, 35234, 41791, 83582, 117967, 235934, 405191, 810382, 9319393, 18638786]

約数ペア:

[(1, 18638786), (2, 9319393), (23, 810382), (46, 405191), (79, 235934), (158, 117967), (223, 83582), (446, 41791), (529, 35234), (1058, 17617), (1817, 10258), (3634, 5129)]