71871849

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 124929792

約数和(自身を除く): 53057943

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 193, 207, 257, 483, 579, 771, 1351, 1449, 1737, 1799, 2313, 4053, 4439, 5397, 5911, 12159, 13317, 16191, 17733, 31073, 39951, 41377, 49601, 53199, 93219, 124131, 148803, 279657, 347207, 372393, 446409, 1041621, 1140823, 3124863, 3422469, 7985761, 10267407, 23957283, 71871849]

約数ペア:

[(1, 71871849), (3, 23957283), (7, 10267407), (9, 7985761), (21, 3422469), (23, 3124863), (63, 1140823), (69, 1041621), (161, 446409), (193, 372393), (207, 347207), (257, 279657), (483, 148803), (579, 124131), (771, 93219), (1351, 53199), (1449, 49601), (1737, 41377), (1799, 39951), (2313, 31073), (4053, 17733), (4439, 16191), (5397, 13317), (5911, 12159)]