20168681

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{347}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 23151744

約数和(自身を除く): 2983063

約数列:

[1, 13, 17, 221, 263, 347, 3419, 4471, 4511, 5899, 58123, 76687, 91261, 1186393, 1551437, 20168681]

約数ペア:

[(1, 20168681), (13, 1551437), (17, 1186393), (221, 91261), (263, 76687), (347, 58123), (3419, 5899), (4471, 4511)]