20201247

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{487}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 11772513

約数列:

[1, 3, 9, 11, 33, 99, 419, 487, 1257, 1461, 3771, 4383, 4609, 5357, 13827, 16071, 41481, 48213, 204053, 612159, 1836477, 2244583, 6733749, 20201247]

約数ペア:

[(1, 20201247), (3, 6733749), (9, 2244583), (11, 1836477), (33, 612159), (99, 204053), (419, 48213), (487, 41481), (1257, 16071), (1461, 13827), (3771, 5357), (4383, 4609)]