20003571

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1096

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 14210829

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 971, 981, 2289, 2913, 2943, 6797, 6867, 8739, 20391, 20601, 26217, 61173, 105839, 183519, 317517, 740873, 952551, 2222619, 2857653, 6667857, 20003571]

約数ペア:

[(1, 20003571), (3, 6667857), (7, 2857653), (9, 2222619), (21, 952551), (27, 740873), (63, 317517), (109, 183519), (189, 105839), (327, 61173), (763, 26217), (971, 20601), (981, 20391), (2289, 8739), (2913, 6867), (2943, 6797)]