18979208

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{8209}}^1$

素因数の和:8249

約数の個数: 24

約数和(自身を含む): 37807050

約数和(自身を除く): 18827842

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 8209, 16418, 32836, 65672, 139553, 279106, 558212, 1116424, 2372401, 4744802, 9489604, 18979208]

約数ペア:

[(1, 18979208), (2, 9489604), (4, 4744802), (8, 2372401), (17, 1116424), (34, 558212), (68, 279106), (136, 139553), (289, 65672), (578, 32836), (1156, 16418), (2312, 8209)]