20123871

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{607}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 27608064

約数和(自身を除く): 7484193

約数列:

[1, 3, 43, 129, 257, 607, 771, 1821, 11051, 26101, 33153, 78303, 155999, 467997, 6707957, 20123871]

約数ペア:

[(1, 20123871), (3, 6707957), (43, 467997), (129, 155999), (257, 78303), (607, 33153), (771, 26101), (1821, 11051)]