218577121

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 270950400

約数和(自身を除く): 52373279

約数列:

[1, 7, 19, 71, 79, 133, 293, 497, 553, 1349, 1501, 2051, 5567, 5609, 9443, 10507, 20803, 23147, 38969, 39263, 106571, 145621, 162029, 395257, 439793, 745997, 1643437, 2766799, 3078551, 11504059, 31225303, 218577121]

約数ペア:

[(1, 218577121), (7, 31225303), (19, 11504059), (71, 3078551), (79, 2766799), (133, 1643437), (293, 745997), (497, 439793), (553, 395257), (1349, 162029), (1501, 145621), (2051, 106571), (5567, 39263), (5609, 38969), (9443, 23147), (10507, 20803)]