19731491689

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2281}}^1\times {\mathrm{4133}}^1$

素因数の和:6457

約数の個数: 32

約数和(自身を含む): 25358022144

約数和(自身を除く): 5626530455

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 2281, 4133, 15967, 28931, 29653, 52463, 53729, 95059, 207571, 367241, 376103, 665413, 682019, 1235767, 4774133, 8650369, 9427373, 65991611, 122555849, 216829579, 857890943, 1517807053, 2818784527, 19731491689]

約数ペア:

[(1, 19731491689), (7, 2818784527), (13, 1517807053), (23, 857890943), (91, 216829579), (161, 122555849), (299, 65991611), (2093, 9427373), (2281, 8650369), (4133, 4774133), (15967, 1235767), (28931, 682019), (29653, 665413), (52463, 376103), (53729, 367241), (95059, 207571)]