21042899

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{809}}^1$

素因数の和:902

約数の個数: 12

約数和(自身を含む): 22793400

約数和(自身を除く): 1750501

約数列:

[1, 19, 37, 703, 809, 1369, 15371, 26011, 29933, 568727, 1107521, 21042899]

約数ペア:

[(1, 21042899), (19, 1107521), (37, 568727), (703, 29933), (809, 26011), (1369, 15371)]