20718486

素因数分解:

$2^1\times 3^2\times {\mathrm{317}}^1\times {\mathrm{3631}}^1$

素因数の和:3956

約数の個数: 24

約数和(自身を含む): 45044064

約数和(自身を除く): 24325578

約数列:

[1, 2, 3, 6, 9, 18, 317, 634, 951, 1902, 2853, 3631, 5706, 7262, 10893, 21786, 32679, 65358, 1151027, 2302054, 3453081, 6906162, 10359243, 20718486]

約数ペア:

[(1, 20718486), (2, 10359243), (3, 6906162), (6, 3453081), (9, 2302054), (18, 1151027), (317, 65358), (634, 32679), (951, 21786), (1902, 10893), (2853, 7262), (3631, 5706)]