21561814

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 35582976

約数和(自身を除く): 14021162

約数列:

[1, 2, 17, 34, 47, 94, 103, 131, 206, 262, 799, 1598, 1751, 2227, 3502, 4454, 4841, 6157, 9682, 12314, 13493, 26986, 82297, 104669, 164594, 209338, 229381, 458762, 634171, 1268342, 10780907, 21561814]

約数ペア:

[(1, 21561814), (2, 10780907), (17, 1268342), (34, 634171), (47, 458762), (94, 229381), (103, 209338), (131, 164594), (206, 104669), (262, 82297), (799, 26986), (1598, 13493), (1751, 12314), (2227, 9682), (3502, 6157), (4454, 4841)]