20404293

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2411}}^1$

素因数の和:2465

約数の個数: 32

約数和(自身を含む): 34578432

約数和(自身を除く): 14174139

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2411, 2821, 7233, 8463, 16877, 31343, 50631, 74741, 94029, 219401, 224223, 523187, 658203, 971633, 1569561, 2914899, 6801431, 20404293]

約数ペア:

[(1, 20404293), (3, 6801431), (7, 2914899), (13, 1569561), (21, 971633), (31, 658203), (39, 523187), (91, 224223), (93, 219401), (217, 94029), (273, 74741), (403, 50631), (651, 31343), (1209, 16877), (2411, 8463), (2821, 7233)]