18311215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{6871}}^1$

素因数の和:6930

約数の個数: 16

約数和(自身を含む): 24244416

約数和(自身を除く): 5933201

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 6871, 34355, 89323, 281711, 446615, 1408555, 3662243, 18311215]

約数ペア:

[(1, 18311215), (5, 3662243), (13, 1408555), (41, 446615), (65, 281711), (205, 89323), (533, 34355), (2665, 6871)]