20344527

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:749

約数の個数: 40

約数和(自身を含む): 35440416

約数和(自身を除く): 15095889

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 677, 1113, 1431, 2031, 3339, 4293, 4739, 6093, 10017, 14217, 18279, 30051, 35881, 42651, 54837, 107643, 127953, 251167, 322929, 383859, 753501, 968787, 2260503, 2906361, 6781509, 20344527]

約数ペア:

[(1, 20344527), (3, 6781509), (7, 2906361), (9, 2260503), (21, 968787), (27, 753501), (53, 383859), (63, 322929), (81, 251167), (159, 127953), (189, 107643), (371, 54837), (477, 42651), (567, 35881), (677, 30051), (1113, 18279), (1431, 14217), (2031, 10017), (3339, 6093), (4293, 4739)]