20784876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247439}}^1$

素因数の和:247453

約数の個数: 24

約数和(自身を含む): 55426560

約数和(自身を除く): 34641684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247439, 494878, 742317, 989756, 1484634, 1732073, 2969268, 3464146, 5196219, 6928292, 10392438, 20784876]

約数ペア:

[(1, 20784876), (2, 10392438), (3, 6928292), (4, 5196219), (6, 3464146), (7, 2969268), (12, 1732073), (14, 1484634), (21, 989756), (28, 742317), (42, 494878), (84, 247439)]