21851812

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{76943}}^1$

素因数の和:77018

約数の個数: 12

約数和(自身を含む): 38779776

約数和(自身を除く): 16927964

約数列:

[1, 2, 4, 71, 142, 284, 76943, 153886, 307772, 5462953, 10925906, 21851812]

約数ペア:

[(1, 21851812), (2, 10925906), (4, 5462953), (71, 307772), (142, 153886), (284, 76943)]