20339505

素因数分解:

$3^4\times 5^1\times {\mathrm{50221}}^1$

素因数の和:50238

約数の個数: 20

約数和(自身を含む): 36461172

約数和(自身を除く): 16121667

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50221, 150663, 251105, 451989, 753315, 1355967, 2259945, 4067901, 6779835, 20339505]

約数ペア:

[(1, 20339505), (3, 6779835), (5, 4067901), (9, 2259945), (15, 1355967), (27, 753315), (45, 451989), (81, 251105), (135, 150663), (405, 50221)]