13218795

素因数分解:

$3^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:401

約数の個数: 40

約数和(自身を含む): 23975424

約数和(自身を除く): 10756629

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 127, 135, 257, 381, 405, 635, 771, 1143, 1285, 1905, 2313, 3429, 3855, 5715, 6939, 10287, 11565, 17145, 20817, 32639, 34695, 51435, 97917, 104085, 163195, 293751, 489585, 881253, 1468755, 2643759, 4406265, 13218795]

約数ペア:

[(1, 13218795), (3, 4406265), (5, 2643759), (9, 1468755), (15, 881253), (27, 489585), (45, 293751), (81, 163195), (127, 104085), (135, 97917), (257, 51435), (381, 34695), (405, 32639), (635, 20817), (771, 17145), (1143, 11565), (1285, 10287), (1905, 6939), (2313, 5715), (3429, 3855)]