20667864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2861}}^1$

素因数の和:2920

約数の個数: 64

約数和(自身を含む): 60445440

約数和(自身を除く): 39777576

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 56, 84, 86, 129, 168, 172, 258, 301, 344, 516, 602, 903, 1032, 1204, 1806, 2408, 2861, 3612, 5722, 7224, 8583, 11444, 17166, 20027, 22888, 34332, 40054, 60081, 68664, 80108, 120162, 123023, 160216, 240324, 246046, 369069, 480648, 492092, 738138, 861161, 984184, 1476276, 1722322, 2583483, 2952552, 3444644, 5166966, 6889288, 10333932, 20667864]

約数ペア:

[(1, 20667864), (2, 10333932), (3, 6889288), (4, 5166966), (6, 3444644), (7, 2952552), (8, 2583483), (12, 1722322), (14, 1476276), (21, 984184), (24, 861161), (28, 738138), (42, 492092), (43, 480648), (56, 369069), (84, 246046), (86, 240324), (129, 160216), (168, 123023), (172, 120162), (258, 80108), (301, 68664), (344, 60081), (516, 40054), (602, 34332), (903, 22888), (1032, 20027), (1204, 17166), (1806, 11444), (2408, 8583), (2861, 7224), (3612, 5722)]