81628428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{971767}}^1$

素因数の和:971781

約数の個数: 24

約数和(自身を含む): 217676032

約数和(自身を除く): 136047604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 971767, 1943534, 2915301, 3887068, 5830602, 6802369, 11661204, 13604738, 20407107, 27209476, 40814214, 81628428]

約数ペア:

[(1, 81628428), (2, 40814214), (3, 27209476), (4, 20407107), (6, 13604738), (7, 11661204), (12, 6802369), (14, 5830602), (21, 3887068), (28, 2915301), (42, 1943534), (84, 971767)]