2219815

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 3004128

約数和(自身を除く): 784313

約数列:

[1, 5, 13, 37, 65, 71, 169, 185, 355, 481, 845, 923, 2405, 2627, 4615, 6253, 11999, 13135, 31265, 34151, 59995, 170755, 443963, 2219815]

約数ペア:

[(1, 2219815), (5, 443963), (13, 170755), (37, 59995), (65, 34151), (71, 31265), (169, 13135), (185, 11999), (355, 6253), (481, 4615), (845, 2627), (923, 2405)]