19743321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 29636992

約数和(自身を除く): 9893671

約数列:

[1, 3, 13, 39, 43, 61, 129, 183, 193, 559, 579, 793, 1677, 2379, 2509, 2623, 7527, 7869, 8299, 11773, 24897, 34099, 35319, 102297, 107887, 153049, 323661, 459147, 506239, 1518717, 6581107, 19743321]

約数ペア:

[(1, 19743321), (3, 6581107), (13, 1518717), (39, 506239), (43, 459147), (61, 323661), (129, 153049), (183, 107887), (193, 102297), (559, 35319), (579, 34099), (793, 24897), (1677, 11773), (2379, 8299), (2509, 7869), (2623, 7527)]