217436751

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{39671}}^1$

素因数の和:39716

約数の個数: 32

約数和(自身を含む): 380851200

約数和(自身を除く): 163414449

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 5481, 39671, 119013, 277697, 357039, 833091, 1071117, 1150459, 2499273, 3451377, 7497819, 8053213, 10354131, 24159639, 31062393, 72478917, 217436751]

約数ペア:

[(1, 217436751), (3, 72478917), (7, 31062393), (9, 24159639), (21, 10354131), (27, 8053213), (29, 7497819), (63, 3451377), (87, 2499273), (189, 1150459), (203, 1071117), (261, 833091), (609, 357039), (783, 277697), (1827, 119013), (5481, 39671)]