71811519

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1217}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 110496960

約数和(自身を除く): 38685441

約数列:

[1, 3, 13, 17, 39, 51, 89, 221, 267, 663, 1157, 1217, 1513, 3471, 3651, 4539, 15821, 19669, 20689, 47463, 59007, 62067, 108313, 268957, 324939, 806871, 1408069, 1841321, 4224207, 5523963, 23937173, 71811519]

約数ペア:

[(1, 71811519), (3, 23937173), (13, 5523963), (17, 4224207), (39, 1841321), (51, 1408069), (89, 806871), (221, 324939), (267, 268957), (663, 108313), (1157, 62067), (1217, 59007), (1513, 47463), (3471, 20689), (3651, 19669), (4539, 15821)]