20408058741

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1\times {\mathrm{25303}}^1$

素因数の和:25705

約数の個数: 32

約数和(自身を含む): 31417446400

約数和(自身を除く): 11009387659

約数列:

[1, 3, 7, 21, 193, 199, 579, 597, 1351, 1393, 4053, 4179, 25303, 38407, 75909, 115221, 177121, 268849, 531363, 806547, 4883479, 5035297, 14650437, 15105891, 34184353, 35247079, 102553059, 105741237, 971812321, 2915436963, 6802686247, 20408058741]

約数ペア:

[(1, 20408058741), (3, 6802686247), (7, 2915436963), (21, 971812321), (193, 105741237), (199, 102553059), (579, 35247079), (597, 34184353), (1351, 15105891), (1393, 14650437), (4053, 5035297), (4179, 4883479), (25303, 806547), (38407, 531363), (75909, 268849), (115221, 177121)]