21439714

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{13121}}^1$

素因数の和:13185

約数の個数: 16

約数和(自身を含む): 34642080

約数和(自身を除く): 13202366

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 13121, 26242, 249299, 498598, 564203, 1128406, 10719857, 21439714]

約数ペア:

[(1, 21439714), (2, 10719857), (19, 1128406), (38, 564203), (43, 498598), (86, 249299), (817, 26242), (1634, 13121)]