20535949

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 25670520

約数和(自身を除く): 5134571

約数列:

[1, 7, 17, 49, 89, 119, 277, 623, 833, 1513, 1939, 4361, 4709, 10591, 13573, 24653, 32963, 74137, 172571, 230741, 419101, 1207997, 2933707, 20535949]

約数ペア:

[(1, 20535949), (7, 2933707), (17, 1207997), (49, 419101), (89, 230741), (119, 172571), (277, 74137), (623, 32963), (833, 24653), (1513, 13573), (1939, 10591), (4361, 4709)]