20173244

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 43850688

約数和(自身を除く): 23677444

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 157, 182, 314, 353, 364, 628, 706, 1099, 1412, 2041, 2198, 2471, 4082, 4396, 4589, 4942, 8164, 9178, 9884, 14287, 18356, 28574, 32123, 55421, 57148, 64246, 110842, 128492, 221684, 387947, 720473, 775894, 1440946, 1551788, 2881892, 5043311, 10086622, 20173244]

約数ペア:

[(1, 20173244), (2, 10086622), (4, 5043311), (7, 2881892), (13, 1551788), (14, 1440946), (26, 775894), (28, 720473), (52, 387947), (91, 221684), (157, 128492), (182, 110842), (314, 64246), (353, 57148), (364, 55421), (628, 32123), (706, 28574), (1099, 18356), (1412, 14287), (2041, 9884), (2198, 9178), (2471, 8164), (4082, 4942), (4396, 4589)]