21348688

素因数分解:

$2^4\times {\mathrm{1091}}^1\times {\mathrm{1223}}^1$

素因数の和:2322

約数の個数: 20

約数和(自身を含む): 41434848

約数和(自身を除く): 20086160

約数列:

[1, 2, 4, 8, 16, 1091, 1223, 2182, 2446, 4364, 4892, 8728, 9784, 17456, 19568, 1334293, 2668586, 5337172, 10674344, 21348688]

約数ペア:

[(1, 21348688), (2, 10674344), (4, 5337172), (8, 2668586), (16, 1334293), (1091, 19568), (1223, 17456), (2182, 9784), (2446, 8728), (4364, 4892)]