51251949

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 91054080

約数和(自身を除く): 39802131

約数列:

[1, 3, 7, 9, 19, 21, 47, 57, 63, 133, 141, 171, 329, 399, 423, 893, 911, 987, 1197, 2679, 2733, 2961, 6251, 6377, 8037, 8199, 17309, 18753, 19131, 42817, 51927, 56259, 57393, 121163, 128451, 155781, 299719, 363489, 385353, 813523, 899157, 1090467, 2440569, 2697471, 5694661, 7321707, 17083983, 51251949]

約数ペア:

[(1, 51251949), (3, 17083983), (7, 7321707), (9, 5694661), (19, 2697471), (21, 2440569), (47, 1090467), (57, 899157), (63, 813523), (133, 385353), (141, 363489), (171, 299719), (329, 155781), (399, 128451), (423, 121163), (893, 57393), (911, 56259), (987, 51927), (1197, 42817), (2679, 19131), (2733, 18753), (2961, 17309), (6251, 8199), (6377, 8037)]