56781543

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 97190016

約数和(自身を除く): 40408473

約数列:

[1, 3, 7, 13, 21, 39, 43, 49, 91, 129, 147, 273, 301, 559, 637, 691, 903, 1677, 1911, 2073, 2107, 3913, 4837, 6321, 8983, 11739, 14511, 26949, 27391, 29713, 33859, 62881, 82173, 89139, 101577, 188643, 207991, 386269, 440167, 623973, 1158807, 1320501, 1455937, 2703883, 4367811, 8111649, 18927181, 56781543]

約数ペア:

[(1, 56781543), (3, 18927181), (7, 8111649), (13, 4367811), (21, 2703883), (39, 1455937), (43, 1320501), (49, 1158807), (91, 623973), (129, 440167), (147, 386269), (273, 207991), (301, 188643), (559, 101577), (637, 89139), (691, 82173), (903, 62881), (1677, 33859), (1911, 29713), (2073, 27391), (2107, 26949), (3913, 14511), (4837, 11739), (6321, 8983)]