20819673

素因数分解:

$3^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:595

約数の個数: 40

約数和(自身を含む): 36102528

約数和(自身を除く): 15282855

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 81, 189, 219, 503, 511, 567, 657, 1509, 1533, 1971, 3521, 4527, 4599, 5913, 10563, 13581, 13797, 31689, 36719, 40743, 41391, 95067, 110157, 257033, 285201, 330471, 771099, 991413, 2313297, 2974239, 6939891, 20819673]

約数ペア:

[(1, 20819673), (3, 6939891), (7, 2974239), (9, 2313297), (21, 991413), (27, 771099), (63, 330471), (73, 285201), (81, 257033), (189, 110157), (219, 95067), (503, 41391), (511, 40743), (567, 36719), (657, 31689), (1509, 13797), (1533, 13581), (1971, 10563), (3521, 5913), (4527, 4599)]