28616991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 43663872

約数和(自身を除く): 15046881

約数列:

[1, 3, 13, 23, 39, 61, 69, 183, 299, 523, 793, 897, 1403, 1569, 2379, 4209, 6799, 12029, 18239, 20397, 31903, 36087, 54717, 95709, 156377, 414739, 469131, 733769, 1244217, 2201307, 9538997, 28616991]

約数ペア:

[(1, 28616991), (3, 9538997), (13, 2201307), (23, 1244217), (39, 733769), (61, 469131), (69, 414739), (183, 156377), (299, 95709), (523, 54717), (793, 36087), (897, 31903), (1403, 20397), (1569, 18239), (2379, 12029), (4209, 6799)]