20535381

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1129}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 31025280

約数和(自身を除く): 10489899

約数列:

[1, 3, 9, 43, 47, 129, 141, 387, 423, 1129, 2021, 3387, 6063, 10161, 18189, 48547, 53063, 145641, 159189, 436923, 477567, 2281709, 6845127, 20535381]

約数ペア:

[(1, 20535381), (3, 6845127), (9, 2281709), (43, 477567), (47, 436923), (129, 159189), (141, 145641), (387, 53063), (423, 48547), (1129, 18189), (2021, 10161), (3387, 6063)]