18906489

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4111}}^1$

素因数の和:4197

約数の個数: 24

約数和(自身を含む): 31645952

約数和(自身を除く): 12739463

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4111, 4599, 12333, 28777, 36999, 86331, 258993, 300103, 900309, 2100721, 2700927, 6302163, 18906489]

約数ペア:

[(1, 18906489), (3, 6302163), (7, 2700927), (9, 2100721), (21, 900309), (63, 300103), (73, 258993), (219, 86331), (511, 36999), (657, 28777), (1533, 12333), (4111, 4599)]