20878634

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10729}}^1$

素因数の和:10877

約数の個数: 16

約数和(自身を含む): 36052800

約数和(自身を除く): 15174166

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10729, 21458, 75103, 150206, 1491331, 2982662, 10439317, 20878634]

約数ペア:

[(1, 20878634), (2, 10439317), (7, 2982662), (14, 1491331), (139, 150206), (278, 75103), (973, 21458), (1946, 10729)]