20211412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1973}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 38303496

約数和(自身を除く): 18092084

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 1973, 2561, 3946, 5122, 7892, 10244, 25649, 51298, 102596, 388681, 777362, 1554724, 5052853, 10105706, 20211412]

約数ペア:

[(1, 20211412), (2, 10105706), (4, 5052853), (13, 1554724), (26, 777362), (52, 388681), (197, 102596), (394, 51298), (788, 25649), (1973, 10244), (2561, 7892), (3946, 5122)]