18233721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 30937920

約数和(自身を除く): 12704199

約数列:

[1, 3, 9, 11, 27, 29, 33, 73, 87, 99, 219, 261, 297, 319, 657, 783, 803, 841, 957, 1971, 2117, 2409, 2523, 2871, 6351, 7227, 7569, 8613, 9251, 19053, 21681, 22707, 23287, 27753, 57159, 61393, 69861, 83259, 184179, 209583, 249777, 552537, 628749, 675323, 1657611, 2025969, 6077907, 18233721]

約数ペア:

[(1, 18233721), (3, 6077907), (9, 2025969), (11, 1657611), (27, 675323), (29, 628749), (33, 552537), (73, 249777), (87, 209583), (99, 184179), (219, 83259), (261, 69861), (297, 61393), (319, 57159), (657, 27753), (783, 23287), (803, 22707), (841, 21681), (957, 19053), (1971, 9251), (2117, 8613), (2409, 7569), (2523, 7227), (2871, 6351)]