20768644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1151}}^1$

素因数の和:1515

約数の個数: 24

約数和(自身を含む): 39287808

約数和(自身を除く): 18519164

約数列:

[1, 2, 4, 13, 26, 52, 347, 694, 1151, 1388, 2302, 4511, 4604, 9022, 14963, 18044, 29926, 59852, 399397, 798794, 1597588, 5192161, 10384322, 20768644]

約数ペア:

[(1, 20768644), (2, 10384322), (4, 5192161), (13, 1597588), (26, 798794), (52, 399397), (347, 59852), (694, 29926), (1151, 18044), (1388, 14963), (2302, 9022), (4511, 4604)]