19768905

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{719}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 17970615

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 195, 235, 423, 585, 611, 705, 719, 1833, 2115, 2157, 3055, 3595, 5499, 6471, 9165, 9347, 10785, 27495, 28041, 32355, 33793, 46735, 84123, 101379, 140205, 168965, 304137, 420615, 439309, 506895, 1317927, 1520685, 2196545, 3953781, 6589635, 19768905]

約数ペア:

[(1, 19768905), (3, 6589635), (5, 3953781), (9, 2196545), (13, 1520685), (15, 1317927), (39, 506895), (45, 439309), (47, 420615), (65, 304137), (117, 168965), (141, 140205), (195, 101379), (235, 84123), (423, 46735), (585, 33793), (611, 32355), (705, 28041), (719, 27495), (1833, 10785), (2115, 9347), (2157, 9165), (3055, 6471), (3595, 5499)]