17970939

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2617}}^1$

素因数の和:2739

約数の個数: 24

約数和(自身を含む): 29949920

約数和(自身を除く): 11978981

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2617, 6867, 7851, 18319, 23553, 54957, 164871, 285253, 855759, 1996771, 2567277, 5990313, 17970939]

約数ペア:

[(1, 17970939), (3, 5990313), (7, 2567277), (9, 1996771), (21, 855759), (63, 285253), (109, 164871), (327, 54957), (763, 23553), (981, 18319), (2289, 7851), (2617, 6867)]