13206725

素因数分解:

$5^2\times 7^2\times {\mathrm{10781}}^1$

素因数の和:10805

約数の個数: 18

約数和(自身を含む): 19051794

約数和(自身を除く): 5845069

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 10781, 53905, 75467, 269525, 377335, 528269, 1886675, 2641345, 13206725]

約数ペア:

[(1, 13206725), (5, 2641345), (7, 1886675), (25, 528269), (35, 377335), (49, 269525), (175, 75467), (245, 53905), (1225, 10781)]