20181816

素因数分解:

$2^3\times 3^2\times {\mathrm{280303}}^1$

素因数の和:280315

約数の個数: 24

約数和(自身を含む): 54659280

約数和(自身を除く): 34477464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 280303, 560606, 840909, 1121212, 1681818, 2242424, 2522727, 3363636, 5045454, 6727272, 10090908, 20181816]

約数ペア:

[(1, 20181816), (2, 10090908), (3, 6727272), (4, 5045454), (6, 3363636), (8, 2522727), (9, 2242424), (12, 1681818), (18, 1121212), (24, 840909), (36, 560606), (72, 280303)]