21068752

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32117}}^1$

素因数の和:32166

約数の個数: 20

約数和(自身を含む): 41817636

約数和(自身を除く): 20748884

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32117, 64234, 128468, 256936, 513872, 1316797, 2633594, 5267188, 10534376, 21068752]

約数ペア:

[(1, 21068752), (2, 10534376), (4, 5267188), (8, 2633594), (16, 1316797), (41, 513872), (82, 256936), (164, 128468), (328, 64234), (656, 32117)]