18381957

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 27323520

約数和(自身を除く): 8941563

約数列:

[1, 3, 11, 33, 79, 121, 237, 363, 641, 869, 1923, 2607, 7051, 9559, 21153, 28677, 50639, 77561, 151917, 232683, 557029, 1671087, 6127319, 18381957]

約数ペア:

[(1, 18381957), (3, 6127319), (11, 1671087), (33, 557029), (79, 232683), (121, 151917), (237, 77561), (363, 50639), (641, 28677), (869, 21153), (1923, 9559), (2607, 7051)]