26991705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1427}}^1$

素因数の和:1545

約数の個数: 32

約数和(自身を含む): 47021184

約数和(自身を除く): 20029479

約数列:

[1, 3, 5, 13, 15, 39, 65, 97, 195, 291, 485, 1261, 1427, 1455, 3783, 4281, 6305, 7135, 18551, 18915, 21405, 55653, 92755, 138419, 278265, 415257, 692095, 1799447, 2076285, 5398341, 8997235, 26991705]

約数ペア:

[(1, 26991705), (3, 8997235), (5, 5398341), (13, 2076285), (15, 1799447), (39, 692095), (65, 415257), (97, 278265), (195, 138419), (291, 92755), (485, 55653), (1261, 21405), (1427, 18915), (1455, 18551), (3783, 7135), (4281, 6305)]