20742722

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{797}}^1$

素因数の和:843

約数の個数: 48

約数和(自身を含む): 42057792

約数和(自身を除く): 21315070

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 169, 182, 286, 338, 797, 1001, 1183, 1594, 1859, 2002, 2366, 3718, 5579, 8767, 10361, 11158, 13013, 17534, 20722, 26026, 61369, 72527, 113971, 122738, 134693, 145054, 227942, 269386, 797797, 942851, 1481623, 1595594, 1885702, 2963246, 10371361, 20742722]

約数ペア:

[(1, 20742722), (2, 10371361), (7, 2963246), (11, 1885702), (13, 1595594), (14, 1481623), (22, 942851), (26, 797797), (77, 269386), (91, 227942), (143, 145054), (154, 134693), (169, 122738), (182, 113971), (286, 72527), (338, 61369), (797, 26026), (1001, 20722), (1183, 17534), (1594, 13013), (1859, 11158), (2002, 10361), (2366, 8767), (3718, 5579)]