20299279

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2897}}^1$

素因数の和:2935

約数の個数: 24

約数和(自身を含む): 27751248

約数和(自身を除く): 7451969

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2897, 7007, 20279, 31867, 37661, 141953, 223069, 263627, 414271, 1561483, 1845389, 2899897, 20299279]

約数ペア:

[(1, 20299279), (7, 2899897), (11, 1845389), (13, 1561483), (49, 414271), (77, 263627), (91, 223069), (143, 141953), (539, 37661), (637, 31867), (1001, 20279), (2897, 7007)]