20837516

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3527}}^1$

素因数の和:3749

約数の個数: 24

約数和(自身を含む): 41884416

約数和(自身を除く): 21046900

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 3527, 5908, 7054, 14108, 24689, 49378, 98756, 744197, 1488394, 2976788, 5209379, 10418758, 20837516]

約数ペア:

[(1, 20837516), (2, 10418758), (4, 5209379), (7, 2976788), (14, 1488394), (28, 744197), (211, 98756), (422, 49378), (844, 24689), (1477, 14108), (2954, 7054), (3527, 5908)]