12920516

素因数分解:

$2^2\times 7^2\times {\mathrm{65921}}^1$

素因数の和:65939

約数の個数: 18

約数和(自身を含む): 26302878

約数和(自身を除く): 13382362

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 65921, 131842, 263684, 461447, 922894, 1845788, 3230129, 6460258, 12920516]

約数ペア:

[(1, 12920516), (2, 6460258), (4, 3230129), (7, 1845788), (14, 922894), (28, 461447), (49, 263684), (98, 131842), (196, 65921)]