28143269

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 35750400

約数和(自身を除く): 7607131

約数列:

[1, 7, 11, 77, 121, 149, 223, 847, 1043, 1561, 1639, 2453, 11473, 17171, 18029, 26983, 33227, 126203, 188881, 232589, 365497, 2558479, 4020467, 28143269]

約数ペア:

[(1, 28143269), (7, 4020467), (11, 2558479), (77, 365497), (121, 232589), (149, 188881), (223, 126203), (847, 33227), (1043, 26983), (1561, 18029), (1639, 17171), (2453, 11473)]