18905551

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3467}}^1$

素因数の和:3534

約数の個数: 16

約数和(自身を含む): 23304960

約数和(自身を除く): 4399409

約数列:

[1, 7, 19, 41, 133, 287, 779, 3467, 5453, 24269, 65873, 142147, 461111, 995029, 2700793, 18905551]

約数ペア:

[(1, 18905551), (7, 2700793), (19, 995029), (41, 461111), (133, 142147), (287, 65873), (779, 24269), (3467, 5453)]