20855688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2887}}^1$

素因数の和:2946

約数の個数: 64

約数和(自身を含む): 60994560

約数和(自身を除く): 40138872

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, 2887, 3612, 5774, 7224, 8661, 11548, 17322, 20209, 23096, 34644, 40418, 60627, 69288, 80836, 121254, 124141, 161672, 242508, 248282, 372423, 485016, 496564, 744846, 868987, 993128, 1489692, 1737974, 2606961, 2979384, 3475948, 5213922, 6951896, 10427844, 20855688]

約数ペア:

[(1, 20855688), (2, 10427844), (3, 6951896), (4, 5213922), (6, 3475948), (7, 2979384), (8, 2606961), (12, 1737974), (14, 1489692), (21, 993128), (24, 868987), (28, 744846), (42, 496564), (43, 485016), (56, 372423), (84, 248282), (86, 242508), (129, 161672), (168, 124141), (172, 121254), (258, 80836), (301, 69288), (344, 60627), (516, 40418), (602, 34644), (903, 23096), (1032, 20209), (1204, 17322), (1806, 11548), (2408, 8661), (2887, 7224), (3612, 5774)]