21421794

素因数分解:

$2^1\times 3^1\times {\mathrm{419}}^1\times {\mathrm{8521}}^1$

素因数の和:8945

約数の個数: 16

約数和(自身を含む): 42950880

約数和(自身を除く): 21529086

約数列:

[1, 2, 3, 6, 419, 838, 1257, 2514, 8521, 17042, 25563, 51126, 3570299, 7140598, 10710897, 21421794]

約数ペア:

[(1, 21421794), (2, 10710897), (3, 7140598), (6, 3570299), (419, 51126), (838, 25563), (1257, 17042), (2514, 8521)]