81288729

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{359}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 119246400

約数和(自身を除く): 37957671

約数列:

[1, 3, 9, 139, 181, 359, 417, 543, 1077, 1251, 1629, 3231, 25159, 49901, 64979, 75477, 149703, 194937, 226431, 449109, 584811, 9032081, 27096243, 81288729]

約数ペア:

[(1, 81288729), (3, 27096243), (9, 9032081), (139, 584811), (181, 449109), (359, 226431), (417, 194937), (543, 149703), (1077, 75477), (1251, 64979), (1629, 49901), (3231, 25159)]