20005818

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{9721}}^1$

素因数の和:9747

約数の個数: 32

約数和(自身を含む): 46665600

約数和(自身を除く): 26659782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 2058, 9721, 19442, 29163, 58326, 68047, 136094, 204141, 408282, 476329, 952658, 1428987, 2857974, 3334303, 6668606, 10002909, 20005818]

約数ペア:

[(1, 20005818), (2, 10002909), (3, 6668606), (6, 3334303), (7, 2857974), (14, 1428987), (21, 952658), (42, 476329), (49, 408282), (98, 204141), (147, 136094), (294, 68047), (343, 58326), (686, 29163), (1029, 19442), (2058, 9721)]