165720717

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^2\times {\mathrm{103}}^1$

素因数の和:322

約数の個数: 36

約数和(自身を含む): 257069280

約数和(自身を除く): 91348563

約数列:

[1, 3, 9, 19, 57, 97, 103, 171, 291, 309, 873, 927, 1843, 1957, 5529, 5871, 9409, 9991, 16587, 17613, 28227, 29973, 84681, 89919, 178771, 189829, 536313, 569487, 969127, 1608939, 1708461, 2907381, 8722143, 18413413, 55240239, 165720717]

約数ペア:

[(1, 165720717), (3, 55240239), (9, 18413413), (19, 8722143), (57, 2907381), (97, 1708461), (103, 1608939), (171, 969127), (291, 569487), (309, 536313), (873, 189829), (927, 178771), (1843, 89919), (1957, 84681), (5529, 29973), (5871, 28227), (9409, 17613), (9991, 16587)]