19338825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2131}}^1$

素因数の和:2166

約数の個数: 36

約数和(自身を含む): 35160944

約数和(自身を除く): 15822119

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2131, 3025, 6393, 9075, 10655, 23441, 31965, 53275, 70323, 117205, 159825, 257851, 351615, 586025, 773553, 1289255, 1758075, 3867765, 6446275, 19338825]

約数ペア:

[(1, 19338825), (3, 6446275), (5, 3867765), (11, 1758075), (15, 1289255), (25, 773553), (33, 586025), (55, 351615), (75, 257851), (121, 159825), (165, 117205), (275, 70323), (363, 53275), (605, 31965), (825, 23441), (1815, 10655), (2131, 9075), (3025, 6393)]