20972061

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{293}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 34151040

約数和(自身を除く): 13178979

約数列:

[1, 3, 9, 11, 27, 33, 99, 241, 293, 297, 723, 879, 2169, 2637, 2651, 3223, 6507, 7911, 7953, 9669, 23859, 29007, 70613, 71577, 87021, 211839, 635517, 776743, 1906551, 2330229, 6990687, 20972061]

約数ペア:

[(1, 20972061), (3, 6990687), (9, 2330229), (11, 1906551), (27, 776743), (33, 635517), (99, 211839), (241, 87021), (293, 71577), (297, 70613), (723, 29007), (879, 23859), (2169, 9669), (2637, 7953), (2651, 7911), (3223, 6507)]