19966743

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4651}}^1$

素因数の和:4716

約数の個数: 20

約数和(自身を含む): 30396168

約数和(自身を除く): 10429425

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4651, 13953, 41859, 125577, 246503, 376731, 739509, 2218527, 6655581, 19966743]

約数ペア:

[(1, 19966743), (3, 6655581), (9, 2218527), (27, 739509), (53, 376731), (81, 246503), (159, 125577), (477, 41859), (1431, 13953), (4293, 4651)]