18630339

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9749}}^1$

素因数の和:9779

約数の個数: 24

約数和(自身を含む): 31122000

約数和(自身を除く): 12491661

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9749, 29247, 68243, 126737, 204729, 380211, 477701, 887159, 1433103, 2661477, 6210113, 18630339]

約数ペア:

[(1, 18630339), (3, 6210113), (7, 2661477), (13, 1433103), (21, 887159), (39, 477701), (49, 380211), (91, 204729), (147, 126737), (273, 68243), (637, 29247), (1911, 9749)]