20403056

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11699}}^1$

素因数の和:11816

約数の個数: 20

約数和(自身を含む): 39897000

約数和(自身を除く): 19493944

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11699, 23398, 46796, 93592, 187184, 1275191, 2550382, 5100764, 10201528, 20403056]

約数ペア:

[(1, 20403056), (2, 10201528), (4, 5100764), (8, 2550382), (16, 1275191), (109, 187184), (218, 93592), (436, 46796), (872, 23398), (1744, 11699)]