13785121

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 16929000

約数和(自身を除く): 3143879

約数列:

[1, 7, 29, 49, 89, 109, 203, 623, 763, 1421, 2581, 3161, 4361, 5341, 9701, 18067, 22127, 67907, 126469, 154889, 281329, 475349, 1969303, 13785121]

約数ペア:

[(1, 13785121), (7, 1969303), (29, 475349), (49, 281329), (89, 154889), (109, 126469), (203, 67907), (623, 22127), (763, 18067), (1421, 9701), (2581, 5341), (3161, 4361)]