21865617

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1447}}^1$

素因数の和:1549

約数の個数: 24

約数和(自身を含む): 33431424

約数和(自身を除く): 11565807

約数列:

[1, 3, 9, 23, 69, 73, 207, 219, 657, 1447, 1679, 4341, 5037, 13023, 15111, 33281, 99843, 105631, 299529, 316893, 950679, 2429513, 7288539, 21865617]

約数ペア:

[(1, 21865617), (3, 7288539), (9, 2429513), (23, 950679), (69, 316893), (73, 299529), (207, 105631), (219, 99843), (657, 33281), (1447, 15111), (1679, 13023), (4341, 5037)]