20996875788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2336101}}^1$

素因数の和:2336222

約数の個数: 48

約数和(自身を含む): 56514979584

約数和(自身を除く): 35518103796

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 107, 214, 321, 428, 642, 749, 1284, 1498, 2247, 2996, 4494, 8988, 2336101, 4672202, 7008303, 9344404, 14016606, 16352707, 28033212, 32705414, 49058121, 65410828, 98116242, 196232484, 249962807, 499925614, 749888421, 999851228, 1499776842, 1749739649, 2999553684, 3499479298, 5249218947, 6998958596, 10498437894, 20996875788]

約数ペア:

[(1, 20996875788), (2, 10498437894), (3, 6998958596), (4, 5249218947), (6, 3499479298), (7, 2999553684), (12, 1749739649), (14, 1499776842), (21, 999851228), (28, 749888421), (42, 499925614), (84, 249962807), (107, 196232484), (214, 98116242), (321, 65410828), (428, 49058121), (642, 32705414), (749, 28033212), (1284, 16352707), (1498, 14016606), (2247, 9344404), (2996, 7008303), (4494, 4672202), (8988, 2336101)]