21641718

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{515279}}^1$

素因数の和:515291

約数の個数: 16

約数和(自身を含む): 49466880

約数和(自身を除く): 27825162

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 515279, 1030558, 1545837, 3091674, 3606953, 7213906, 10820859, 21641718]

約数ペア:

[(1, 21641718), (2, 10820859), (3, 7213906), (6, 3606953), (7, 3091674), (14, 1545837), (21, 1030558), (42, 515279)]