217403721

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{1907}}^1$

素因数の和:2205

約数の個数: 24

約数和(自身を含む): 321459840

約数和(自身を除く): 104056119

約数列:

[1, 3, 9, 53, 159, 239, 477, 717, 1907, 2151, 5721, 12667, 17163, 38001, 101071, 114003, 303213, 455773, 909639, 1367319, 4101957, 24155969, 72467907, 217403721]

約数ペア:

[(1, 217403721), (3, 72467907), (9, 24155969), (53, 4101957), (159, 1367319), (239, 909639), (477, 455773), (717, 303213), (1907, 114003), (2151, 101071), (5721, 38001), (12667, 17163)]