20742786

素因数分解:

$2^1\times 3^2\times {\mathrm{491}}^1\times {\mathrm{2347}}^1$

素因数の和:2846

約数の個数: 24

約数和(自身を含む): 45053424

約数和(自身を除く): 24310638

約数列:

[1, 2, 3, 6, 9, 18, 491, 982, 1473, 2347, 2946, 4419, 4694, 7041, 8838, 14082, 21123, 42246, 1152377, 2304754, 3457131, 6914262, 10371393, 20742786]

約数ペア:

[(1, 20742786), (2, 10371393), (3, 6914262), (6, 3457131), (9, 2304754), (18, 1152377), (491, 42246), (982, 21123), (1473, 14082), (2347, 8838), (2946, 7041), (4419, 4694)]