19990061

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2053}}^1$

素因数の和:2180

約数の個数: 16

約数和(自身を含む): 24845184

約数和(自身を除く): 4855123

約数列:

[1, 7, 13, 91, 107, 749, 1391, 2053, 9737, 14371, 26689, 186823, 219671, 1537697, 2855723, 19990061]

約数ペア:

[(1, 19990061), (7, 2855723), (13, 1537697), (91, 219671), (107, 186823), (749, 26689), (1391, 14371), (2053, 9737)]