2055555

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2687}}^1$

素因数の和:2715

約数の個数: 24

約数和(自身を含む): 3773952

約数和(自身を除く): 1718397

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 2687, 8061, 13435, 24183, 40305, 45679, 120915, 137037, 228395, 411111, 685185, 2055555]

約数ペア:

[(1, 2055555), (3, 685185), (5, 411111), (9, 228395), (15, 137037), (17, 120915), (45, 45679), (51, 40305), (85, 24183), (153, 13435), (255, 8061), (765, 2687)]