210828009

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{528391}}^1$

素因数の和:528420

約数の個数: 16

約数和(自身を含む): 338170880

約数和(自身を除く): 127342871

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 528391, 1585173, 3698737, 10039429, 11096211, 30118287, 70276003, 210828009]

約数ペア:

[(1, 210828009), (3, 70276003), (7, 30118287), (19, 11096211), (21, 10039429), (57, 3698737), (133, 1585173), (399, 528391)]