20453238

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{87407}}^1$

素因数の和:87428

約数の個数: 24

約数和(自身を含む): 47724768

約数和(自身を除く): 27271530

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 87407, 174814, 262221, 524442, 786663, 1136291, 1573326, 2272582, 3408873, 6817746, 10226619, 20453238]

約数ペア:

[(1, 20453238), (2, 10226619), (3, 6817746), (6, 3408873), (9, 2272582), (13, 1573326), (18, 1136291), (26, 786663), (39, 524442), (78, 262221), (117, 174814), (234, 87407)]