291279843

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{19819}}^1$

素因数の和:19919

約数の個数: 24

約数和(自身を含む): 445236480

約数和(自身を除く): 153956637

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1633, 4899, 14697, 19819, 59457, 178371, 455837, 1367511, 1407149, 4102533, 4221447, 12664341, 32364427, 97093281, 291279843]

約数ペア:

[(1, 291279843), (3, 97093281), (9, 32364427), (23, 12664341), (69, 4221447), (71, 4102533), (207, 1407149), (213, 1367511), (639, 455837), (1633, 178371), (4899, 59457), (14697, 19819)]