18817370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13159}}^1$

素因数の和:13190

約数の個数: 32

約数和(自身を含む): 39795840

約数和(自身を除く): 20978470

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 13159, 26318, 65795, 131590, 144749, 171067, 289498, 342134, 723745, 855335, 1447490, 1710670, 1881737, 3763474, 9408685, 18817370]

約数ペア:

[(1, 18817370), (2, 9408685), (5, 3763474), (10, 1881737), (11, 1710670), (13, 1447490), (22, 855335), (26, 723745), (55, 342134), (65, 289498), (110, 171067), (130, 144749), (143, 131590), (286, 65795), (715, 26318), (1430, 13159)]