21909303

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{941}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 34288800

約数和(自身を除く): 12379497

約数列:

[1, 3, 9, 13, 39, 117, 199, 597, 941, 1791, 2587, 2823, 7761, 8469, 12233, 23283, 36699, 110097, 187259, 561777, 1685331, 2434367, 7303101, 21909303]

約数ペア:

[(1, 21909303), (3, 7303101), (9, 2434367), (13, 1685331), (39, 561777), (117, 187259), (199, 110097), (597, 36699), (941, 23283), (1791, 12233), (2587, 8469), (2823, 7761)]