21806986

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1877}}^1$

素因数の和:2073

約数の個数: 16

約数和(自身を含む): 33826536

約数和(自身を除く): 12019550

約数列:

[1, 2, 37, 74, 157, 314, 1877, 3754, 5809, 11618, 69449, 138898, 294689, 589378, 10903493, 21806986]

約数ペア:

[(1, 21806986), (2, 10903493), (37, 589378), (74, 294689), (157, 138898), (314, 69449), (1877, 11618), (3754, 5809)]