19306881

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17729}}^1$

素因数の和:17757

約数の個数: 18

約数和(自身を含む): 30655170

約数和(自身を除く): 11348289

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 17729, 53187, 159561, 195019, 585057, 1755171, 2145209, 6435627, 19306881]

約数ペア:

[(1, 19306881), (3, 6435627), (9, 2145209), (11, 1755171), (33, 585057), (99, 195019), (121, 159561), (363, 53187), (1089, 17729)]