19983788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3467}}^1$

素因数の和:3613

約数の個数: 24

約数和(自身を含む): 38453184

約数和(自身を除く): 18469396

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3467, 5764, 6934, 13868, 38137, 76274, 152548, 454177, 908354, 1816708, 4995947, 9991894, 19983788]

約数ペア:

[(1, 19983788), (2, 9991894), (4, 4995947), (11, 1816708), (22, 908354), (44, 454177), (131, 152548), (262, 76274), (524, 38137), (1441, 13868), (2882, 6934), (3467, 5764)]