51638571

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 83026944

約数和(自身を除く): 31388373

約数列:

[1, 3, 9, 17, 43, 47, 51, 129, 141, 153, 167, 387, 423, 501, 731, 799, 1503, 2021, 2193, 2397, 2839, 6063, 6579, 7181, 7191, 7849, 8517, 18189, 21543, 23547, 25551, 34357, 64629, 70641, 103071, 122077, 133433, 309213, 337507, 366231, 400299, 1012521, 1098693, 1200897, 3037563, 5737619, 17212857, 51638571]

約数ペア:

[(1, 51638571), (3, 17212857), (9, 5737619), (17, 3037563), (43, 1200897), (47, 1098693), (51, 1012521), (129, 400299), (141, 366231), (153, 337507), (167, 309213), (387, 133433), (423, 122077), (501, 103071), (731, 70641), (799, 64629), (1503, 34357), (2021, 25551), (2193, 23547), (2397, 21543), (2839, 18189), (6063, 8517), (6579, 7849), (7181, 7191)]