21946761

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{599}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 12613239

約数列:

[1, 3, 9, 23, 27, 59, 69, 177, 207, 531, 599, 621, 1357, 1593, 1797, 4071, 5391, 12213, 13777, 16173, 35341, 36639, 41331, 106023, 123993, 318069, 371979, 812843, 954207, 2438529, 7315587, 21946761]

約数ペア:

[(1, 21946761), (3, 7315587), (9, 2438529), (23, 954207), (27, 812843), (59, 371979), (69, 318069), (177, 123993), (207, 106023), (531, 41331), (599, 36639), (621, 35341), (1357, 16173), (1593, 13777), (1797, 12213), (4071, 5391)]