21691136

素因数分解:

$2^8\times {\mathrm{84731}}^1$

素因数の和:84747

約数の個数: 18

約数和(自身を含む): 43298052

約数和(自身を除く): 21606916

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 84731, 169462, 338924, 677848, 1355696, 2711392, 5422784, 10845568, 21691136]

約数ペア:

[(1, 21691136), (2, 10845568), (4, 5422784), (8, 2711392), (16, 1355696), (32, 677848), (64, 338924), (128, 169462), (256, 84731)]