71712207

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 124121088

約数和(自身を除く): 52408881

約数列:

[1, 3, 7, 9, 21, 31, 63, 73, 93, 217, 219, 279, 503, 511, 651, 657, 1509, 1533, 1953, 2263, 3521, 4527, 4599, 6789, 10563, 15593, 15841, 20367, 31689, 36719, 46779, 47523, 109151, 110157, 140337, 142569, 257033, 327453, 330471, 771099, 982359, 1138289, 2313297, 3414867, 7968023, 10244601, 23904069, 71712207]

約数ペア:

[(1, 71712207), (3, 23904069), (7, 10244601), (9, 7968023), (21, 3414867), (31, 2313297), (63, 1138289), (73, 982359), (93, 771099), (217, 330471), (219, 327453), (279, 257033), (503, 142569), (511, 140337), (651, 110157), (657, 109151), (1509, 47523), (1533, 46779), (1953, 36719), (2263, 31689), (3521, 20367), (4527, 15841), (4599, 15593), (6789, 10563)]