20503105

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2027}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 29884608

約数和(自身を除く): 9381503

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 2023, 2027, 10115, 10135, 14189, 34459, 70945, 172295, 241213, 585803, 1206065, 2929015, 4100621, 20503105]

約数ペア:

[(1, 20503105), (5, 4100621), (7, 2929015), (17, 1206065), (35, 585803), (85, 241213), (119, 172295), (289, 70945), (595, 34459), (1445, 14189), (2023, 10135), (2027, 10115)]