21787475085

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{171023}}^1$

素因数の和:171202

約数の個数: 48

約数和(自身を含む): 40019616000

約数和(自身を除く): 18232140915

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 149, 171, 285, 447, 745, 855, 1341, 2235, 2831, 6705, 8493, 14155, 25479, 42465, 127395, 171023, 513069, 855115, 1539207, 2565345, 3249437, 7696035, 9748311, 16247185, 25482427, 29244933, 48741555, 76447281, 127412135, 146224665, 229341843, 382236405, 484166113, 1146709215, 1452498339, 2420830565, 4357495017, 7262491695, 21787475085]

約数ペア:

[(1, 21787475085), (3, 7262491695), (5, 4357495017), (9, 2420830565), (15, 1452498339), (19, 1146709215), (45, 484166113), (57, 382236405), (95, 229341843), (149, 146224665), (171, 127412135), (285, 76447281), (447, 48741555), (745, 29244933), (855, 25482427), (1341, 16247185), (2235, 9748311), (2831, 7696035), (6705, 3249437), (8493, 2565345), (14155, 1539207), (25479, 855115), (42465, 513069), (127395, 171023)]