21966363

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47857}}^1$

素因数の和:47883

約数の個数: 16

約数和(自身を含む): 34457760

約数和(自身を除く): 12491397

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47857, 143571, 430713, 813569, 1292139, 2440707, 7322121, 21966363]

約数ペア:

[(1, 21966363), (3, 7322121), (9, 2440707), (17, 1292139), (27, 813569), (51, 430713), (153, 143571), (459, 47857)]