19815248

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17443}}^1$

素因数の和:17522

約数の個数: 20

約数和(自身を含む): 38935008

約数和(自身を除く): 19119760

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17443, 34886, 69772, 139544, 279088, 1238453, 2476906, 4953812, 9907624, 19815248]

約数ペア:

[(1, 19815248), (2, 9907624), (4, 4953812), (8, 2476906), (16, 1238453), (71, 279088), (142, 139544), (284, 69772), (568, 34886), (1136, 17443)]