21279033

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{63901}}^1$

素因数の和:63944

約数の個数: 12

約数和(自身を含む): 31567588

約数和(自身を除く): 10288555

約数列:

[1, 3, 9, 37, 111, 333, 63901, 191703, 575109, 2364337, 7093011, 21279033]

約数ペア:

[(1, 21279033), (3, 7093011), (9, 2364337), (37, 575109), (111, 191703), (333, 63901)]