20712945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6607}}^1$

素因数の和:6645

約数の個数: 32

約数和(自身を含む): 38062080

約数和(自身を除く): 17349135

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6607, 19821, 33035, 72677, 99105, 125533, 218031, 363385, 376599, 627665, 1090155, 1380863, 1882995, 4142589, 6904315, 20712945]

約数ペア:

[(1, 20712945), (3, 6904315), (5, 4142589), (11, 1882995), (15, 1380863), (19, 1090155), (33, 627665), (55, 376599), (57, 363385), (95, 218031), (165, 125533), (209, 99105), (285, 72677), (627, 33035), (1045, 19821), (3135, 6607)]