21889251

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 34744320

約数和(自身を除く): 12855069

約数列:

[1, 3, 9, 17, 27, 51, 103, 153, 309, 459, 463, 927, 1389, 1751, 2781, 4167, 5253, 7871, 12501, 15759, 23613, 47277, 47689, 70839, 143067, 212517, 429201, 810713, 1287603, 2432139, 7296417, 21889251]

約数ペア:

[(1, 21889251), (3, 7296417), (9, 2432139), (17, 1287603), (27, 810713), (51, 429201), (103, 212517), (153, 143067), (309, 70839), (459, 47689), (463, 47277), (927, 23613), (1389, 15759), (1751, 12501), (2781, 7871), (4167, 5253)]