19995138

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15217}}^1$

素因数の和:15298

約数の個数: 24

約数和(自身を含む): 43919148

約数和(自身を除く): 23924010

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15217, 30434, 45651, 91302, 136953, 273906, 1110841, 2221682, 3332523, 6665046, 9997569, 19995138]

約数ペア:

[(1, 19995138), (2, 9997569), (3, 6665046), (6, 3332523), (9, 2221682), (18, 1110841), (73, 273906), (146, 136953), (219, 91302), (438, 45651), (657, 30434), (1314, 15217)]