16818744501

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{840643}}^1$

素因数の和:840687

約数の個数: 40

約数和(自身を含む): 28481018720

約数和(自身を除く): 11662274219

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 2223, 6669, 20007, 840643, 2521929, 7565787, 10928359, 15972217, 22697361, 32785077, 47916651, 68092083, 98355231, 143749953, 207638821, 295065693, 431249859, 622916463, 885197079, 1293749577, 1868749389, 5606248167, 16818744501]

約数ペア:

[(1, 16818744501), (3, 5606248167), (9, 1868749389), (13, 1293749577), (19, 885197079), (27, 622916463), (39, 431249859), (57, 295065693), (81, 207638821), (117, 143749953), (171, 98355231), (247, 68092083), (351, 47916651), (513, 32785077), (741, 22697361), (1053, 15972217), (1539, 10928359), (2223, 7565787), (6669, 2521929), (20007, 840643)]