18859149

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 40

約数和(自身を含む): 30108672

約数和(自身を除く): 11249523

約数列:

[1, 3, 9, 23, 27, 53, 69, 81, 159, 191, 207, 477, 573, 621, 1219, 1431, 1719, 1863, 3657, 4293, 4393, 5157, 10123, 10971, 13179, 15471, 30369, 32913, 39537, 91107, 98739, 118611, 232829, 273321, 355833, 698487, 819963, 2095461, 6286383, 18859149]

約数ペア:

[(1, 18859149), (3, 6286383), (9, 2095461), (23, 819963), (27, 698487), (53, 355833), (69, 273321), (81, 232829), (159, 118611), (191, 98739), (207, 91107), (477, 39537), (573, 32913), (621, 30369), (1219, 15471), (1431, 13179), (1719, 10971), (1863, 10123), (3657, 5157), (4293, 4393)]