20453859

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 30588480

約数和(自身を除く): 10134621

約数列:

[1, 3, 9, 37, 111, 239, 257, 333, 717, 771, 2151, 2313, 8843, 9509, 26529, 28527, 61423, 79587, 85581, 184269, 552807, 2272651, 6817953, 20453859]

約数ペア:

[(1, 20453859), (3, 6817953), (9, 2272651), (37, 552807), (111, 184269), (239, 85581), (257, 79587), (333, 61423), (717, 28527), (771, 26529), (2151, 9509), (2313, 8843)]