18673497

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 40

約数和(自身を含む): 30108672

約数和(自身を除く): 11435175

約数列:

[1, 3, 9, 17, 27, 51, 71, 81, 153, 191, 213, 459, 573, 639, 1207, 1377, 1719, 1917, 3247, 3621, 5157, 5751, 9741, 10863, 13561, 15471, 29223, 32589, 40683, 87669, 97767, 122049, 230537, 263007, 366147, 691611, 1098441, 2074833, 6224499, 18673497]

約数ペア:

[(1, 18673497), (3, 6224499), (9, 2074833), (17, 1098441), (27, 691611), (51, 366147), (71, 263007), (81, 230537), (153, 122049), (191, 97767), (213, 87669), (459, 40683), (573, 32589), (639, 29223), (1207, 15471), (1377, 13561), (1719, 10863), (1917, 9741), (3247, 5751), (3621, 5157)]