19747871

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{701}}^1$

素因数の和:922

約数の個数: 16

約数和(自身を含む): 23351328

約数和(自身を除く): 3603457

約数列:

[1, 11, 13, 143, 197, 701, 2167, 2561, 7711, 9113, 28171, 100243, 138097, 1519067, 1795261, 19747871]

約数ペア:

[(1, 19747871), (11, 1795261), (13, 1519067), (143, 138097), (197, 100243), (701, 28171), (2167, 9113), (2561, 7711)]