21128366

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{36809}}^1$

素因数の和:36859

約数の個数: 16

約数和(自身を含む): 37104480

約数和(自身を除く): 15976114

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 36809, 73618, 257663, 515326, 1509169, 3018338, 10564183, 21128366]

約数ペア:

[(1, 21128366), (2, 10564183), (7, 3018338), (14, 1509169), (41, 515326), (82, 257663), (287, 73618), (574, 36809)]