21414987

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1087}}^1$

素因数の和:1303

約数の個数: 24

約数和(自身を含む): 33945600

約数和(自身を除く): 12530613

約数列:

[1, 3, 9, 11, 33, 99, 199, 597, 1087, 1791, 2189, 3261, 6567, 9783, 11957, 19701, 35871, 107613, 216313, 648939, 1946817, 2379443, 7138329, 21414987]

約数ペア:

[(1, 21414987), (3, 7138329), (9, 2379443), (11, 1946817), (33, 648939), (99, 216313), (199, 107613), (597, 35871), (1087, 19701), (1791, 11957), (2189, 9783), (3261, 6567)]