20843901

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2659}}^1$

素因数の和:2745

約数の個数: 24

約数和(自身を含む): 32920160

約数和(自身を除く): 12076259

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 2659, 7839, 7977, 23931, 34567, 103701, 178153, 311103, 534459, 1603377, 2315989, 6947967, 20843901]

約数ペア:

[(1, 20843901), (3, 6947967), (9, 2315989), (13, 1603377), (39, 534459), (67, 311103), (117, 178153), (201, 103701), (603, 34567), (871, 23931), (2613, 7977), (2659, 7839)]