19209309

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2621}}^1$

素因数の和:2980

約数の個数: 16

約数和(自身を含む): 29366400

約数和(自身を除く): 10157091

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 2621, 7329, 7863, 18347, 55041, 914729, 2744187, 6403103, 19209309]

約数ペア:

[(1, 19209309), (3, 6403103), (7, 2744187), (21, 914729), (349, 55041), (1047, 18347), (2443, 7863), (2621, 7329)]