18943785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{60139}}^1$

素因数の和:60157

約数の個数: 24

約数和(自身を含む): 37527360

約数和(自身を除く): 18583575

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 60139, 180417, 300695, 420973, 541251, 902085, 1262919, 2104865, 2706255, 3788757, 6314595, 18943785]

約数ペア:

[(1, 18943785), (3, 6314595), (5, 3788757), (7, 2706255), (9, 2104865), (15, 1262919), (21, 902085), (35, 541251), (45, 420973), (63, 300695), (105, 180417), (315, 60139)]