20475091

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{32143}}^1$

素因数の和:32170

約数の個数: 12

約数和(自身を含む): 25650912

約数和(自身を除く): 5175821

約数列:

[1, 7, 13, 49, 91, 637, 32143, 225001, 417859, 1575007, 2925013, 20475091]

約数ペア:

[(1, 20475091), (7, 2925013), (13, 1575007), (49, 417859), (91, 225001), (637, 32143)]