221388531

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{1693}}^1$

素因数の和:2195

約数の個数: 32

約数和(自身を含む): 364277760

約数和(自身を除く): 142889229

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 479, 1437, 1693, 3353, 5079, 6227, 10059, 11851, 18681, 22009, 35553, 43589, 66027, 130767, 154063, 462189, 810947, 2432841, 5676629, 10542311, 17029887, 31626933, 73796177, 221388531]

約数ペア:

[(1, 221388531), (3, 73796177), (7, 31626933), (13, 17029887), (21, 10542311), (39, 5676629), (91, 2432841), (273, 810947), (479, 462189), (1437, 154063), (1693, 130767), (3353, 66027), (5079, 43589), (6227, 35553), (10059, 22009), (11851, 18681)]