51639861

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 89413632

約数和(自身を除く): 37773771

約数列:

[1, 3, 7, 13, 21, 39, 43, 53, 83, 91, 129, 159, 249, 273, 301, 371, 559, 581, 689, 903, 1079, 1113, 1677, 1743, 2067, 2279, 3237, 3569, 3913, 4399, 4823, 6837, 7553, 10707, 11739, 13197, 14469, 15953, 22659, 24983, 29627, 30793, 46397, 47859, 57187, 74949, 88881, 92379, 139191, 171561, 189157, 207389, 324779, 400309, 567471, 622167, 974337, 1200927, 1324099, 2459041, 3972297, 7377123, 17213287, 51639861]

約数ペア:

[(1, 51639861), (3, 17213287), (7, 7377123), (13, 3972297), (21, 2459041), (39, 1324099), (43, 1200927), (53, 974337), (83, 622167), (91, 567471), (129, 400309), (159, 324779), (249, 207389), (273, 189157), (301, 171561), (371, 139191), (559, 92379), (581, 88881), (689, 74949), (903, 57187), (1079, 47859), (1113, 46397), (1677, 30793), (1743, 29627), (2067, 24983), (2279, 22659), (3237, 15953), (3569, 14469), (3913, 13197), (4399, 11739), (4823, 10707), (6837, 7553)]