21033321

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{1583}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 28993536

約数和(自身を除く): 7960215

約数列:

[1, 3, 43, 103, 129, 309, 1583, 4429, 4749, 13287, 68069, 163049, 204207, 489147, 7011107, 21033321]

約数ペア:

[(1, 21033321), (3, 7011107), (43, 489147), (103, 204207), (129, 163049), (309, 68069), (1583, 13287), (4429, 4749)]