19819947

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 11809365

約数列:

[1, 3, 7, 21, 43, 47, 129, 141, 301, 329, 467, 903, 987, 1401, 2021, 3269, 6063, 9807, 14147, 20081, 21949, 42441, 60243, 65847, 140567, 153643, 421701, 460929, 943807, 2831421, 6606649, 19819947]

約数ペア:

[(1, 19819947), (3, 6606649), (7, 2831421), (21, 943807), (43, 460929), (47, 421701), (129, 153643), (141, 140567), (301, 65847), (329, 60243), (467, 42441), (903, 21949), (987, 20081), (1401, 14147), (2021, 9807), (3269, 6063)]