21376816

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16097}}^1$

素因数の和:16188

約数の個数: 20

約数和(自身を含む): 41919192

約数和(自身を除く): 20542376

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16097, 32194, 64388, 128776, 257552, 1336051, 2672102, 5344204, 10688408, 21376816]

約数ペア:

[(1, 21376816), (2, 10688408), (4, 5344204), (8, 2672102), (16, 1336051), (83, 257552), (166, 128776), (332, 64388), (664, 32194), (1328, 16097)]