19189989

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23431}}^1$

素因数の和:23457

約数の個数: 24

約数和(自身を含む): 34116992

約数和(自身を除く): 14927003

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 23431, 70293, 164017, 210879, 304603, 492051, 913809, 1476153, 2132221, 2741427, 6396663, 19189989]

約数ペア:

[(1, 19189989), (3, 6396663), (7, 2741427), (9, 2132221), (13, 1476153), (21, 913809), (39, 492051), (63, 304603), (91, 210879), (117, 164017), (273, 70293), (819, 23431)]