405132021

素因数分解:

$3^2\times 7^1\times {\mathrm{6430667}}^1$

素因数の和:6430680

約数の個数: 12

約数和(自身を含む): 668789472

約数和(自身を除く): 263657451

約数列:

[1, 3, 7, 9, 21, 63, 6430667, 19292001, 45014669, 57876003, 135044007, 405132021]

約数ペア:

[(1, 405132021), (3, 135044007), (7, 57876003), (9, 45014669), (21, 19292001), (63, 6430667)]