19649366

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20771}}^1$

素因数の和:20827

約数の個数: 16

約数和(自身を含む): 32902848

約数和(自身を除く): 13253482

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 20771, 41542, 228481, 456962, 893153, 1786306, 9824683, 19649366]

約数ペア:

[(1, 19649366), (2, 9824683), (11, 1786306), (22, 893153), (43, 456962), (86, 228481), (473, 41542), (946, 20771)]