21511088

素因数分解:

$2^4\times {\mathrm{617}}^1\times {\mathrm{2179}}^1$

素因数の和:2804

約数の個数: 20

約数和(自身を含む): 41764440

約数和(自身を除く): 20253352

約数列:

[1, 2, 4, 8, 16, 617, 1234, 2179, 2468, 4358, 4936, 8716, 9872, 17432, 34864, 1344443, 2688886, 5377772, 10755544, 21511088]

約数ペア:

[(1, 21511088), (2, 10755544), (4, 5377772), (8, 2688886), (16, 1344443), (617, 34864), (1234, 17432), (2179, 9872), (2468, 8716), (4358, 4936)]