20259491

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 25390080

約数和(自身を除く): 5130589

約数列:

[1, 7, 19, 47, 49, 133, 329, 463, 893, 931, 2303, 3241, 6251, 8797, 21761, 22687, 43757, 61579, 152327, 413459, 431053, 1066289, 2894213, 20259491]

約数ペア:

[(1, 20259491), (7, 2894213), (19, 1066289), (47, 431053), (49, 413459), (133, 152327), (329, 61579), (463, 43757), (893, 22687), (931, 21761), (2303, 8797), (3241, 6251)]