20117894

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1\times {\mathrm{521}}^1$

素因数の和:1015

約数の個数: 16

約数和(自身を含む): 31006800

約数和(自身を除く): 10888906

約数列:

[1, 2, 43, 86, 449, 521, 898, 1042, 19307, 22403, 38614, 44806, 233929, 467858, 10058947, 20117894]

約数ペア:

[(1, 20117894), (2, 10058947), (43, 467858), (86, 233929), (449, 44806), (521, 38614), (898, 22403), (1042, 19307)]