20952891

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12224709

約数列:

[1, 3, 9, 17, 27, 51, 153, 191, 239, 459, 573, 717, 1719, 2151, 3247, 4063, 5157, 6453, 9741, 12189, 29223, 36567, 45649, 87669, 109701, 136947, 410841, 776033, 1232523, 2328099, 6984297, 20952891]

約数ペア:

[(1, 20952891), (3, 6984297), (9, 2328099), (17, 1232523), (27, 776033), (51, 410841), (153, 136947), (191, 109701), (239, 87669), (459, 45649), (573, 36567), (717, 29223), (1719, 12189), (2151, 9741), (3247, 6453), (4063, 5157)]