21456708

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:442

約数の個数: 96

約数和(自身を含む): 63033600

約数和(自身を除く): 41576892

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 343, 364, 401, 546, 588, 637, 686, 802, 1029, 1092, 1203, 1274, 1372, 1604, 1911, 2058, 2406, 2548, 2807, 3822, 4116, 4459, 4812, 5213, 5614, 7644, 8421, 8918, 10426, 11228, 13377, 15639, 16842, 17836, 19649, 20852, 26754, 31278, 33684, 36491, 39298, 53508, 58947, 62556, 72982, 78596, 109473, 117894, 137543, 145964, 218946, 235788, 255437, 275086, 412629, 437892, 510874, 550172, 766311, 825258, 1021748, 1532622, 1650516, 1788059, 3065244, 3576118, 5364177, 7152236, 10728354, 21456708]

約数ペア:

[(1, 21456708), (2, 10728354), (3, 7152236), (4, 5364177), (6, 3576118), (7, 3065244), (12, 1788059), (13, 1650516), (14, 1532622), (21, 1021748), (26, 825258), (28, 766311), (39, 550172), (42, 510874), (49, 437892), (52, 412629), (78, 275086), (84, 255437), (91, 235788), (98, 218946), (147, 145964), (156, 137543), (182, 117894), (196, 109473), (273, 78596), (294, 72982), (343, 62556), (364, 58947), (401, 53508), (546, 39298), (588, 36491), (637, 33684), (686, 31278), (802, 26754), (1029, 20852), (1092, 19649), (1203, 17836), (1274, 16842), (1372, 15639), (1604, 13377), (1911, 11228), (2058, 10426), (2406, 8918), (2548, 8421), (2807, 7644), (3822, 5614), (4116, 5213), (4459, 4812)]