18189441

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 29272320

約数和(自身を除く): 11082879

約数列:

[1, 3, 9, 19, 27, 53, 57, 81, 159, 171, 223, 477, 513, 669, 1007, 1431, 1539, 2007, 3021, 4237, 4293, 6021, 9063, 11819, 12711, 18063, 27189, 35457, 38133, 81567, 106371, 114399, 224561, 319113, 343197, 673683, 957339, 2021049, 6063147, 18189441]

約数ペア:

[(1, 18189441), (3, 6063147), (9, 2021049), (19, 957339), (27, 673683), (53, 343197), (57, 319113), (81, 224561), (159, 114399), (171, 106371), (223, 81567), (477, 38133), (513, 35457), (669, 27189), (1007, 18063), (1431, 12711), (1539, 11819), (2007, 9063), (3021, 6021), (4237, 4293)]