21040292

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57803}}^1$

素因数の和:57827

約数の個数: 24

約数和(自身を含む): 45318336

約数和(自身を除く): 24278044

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57803, 115606, 231212, 404621, 751439, 809242, 1502878, 1618484, 3005756, 5260073, 10520146, 21040292]

約数ペア:

[(1, 21040292), (2, 10520146), (4, 5260073), (7, 3005756), (13, 1618484), (14, 1502878), (26, 809242), (28, 751439), (52, 404621), (91, 231212), (182, 115606), (364, 57803)]