20652021

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{887}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 32323200

約数和(自身を除く): 11671179

約数列:

[1, 3, 9, 13, 39, 117, 199, 597, 887, 1791, 2587, 2661, 7761, 7983, 11531, 23283, 34593, 103779, 176513, 529539, 1588617, 2294669, 6884007, 20652021]

約数ペア:

[(1, 20652021), (3, 6884007), (9, 2294669), (13, 1588617), (39, 529539), (117, 176513), (199, 103779), (597, 34593), (887, 23283), (1791, 11531), (2587, 7983), (2661, 7761)]