213515876

素因数分解:

$2^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{19603}}^1$

素因数の和:20003

約数の個数: 24

約数和(自身を含む): 428151360

約数和(自身を除く): 214635484

約数列:

[1, 2, 4, 7, 14, 28, 389, 778, 1556, 2723, 5446, 10892, 19603, 39206, 78412, 137221, 274442, 548884, 7625567, 15251134, 30502268, 53378969, 106757938, 213515876]

約数ペア:

[(1, 213515876), (2, 106757938), (4, 53378969), (7, 30502268), (14, 15251134), (28, 7625567), (389, 548884), (778, 274442), (1556, 137221), (2723, 78412), (5446, 39206), (10892, 19603)]