19478954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8123}}^1$

素因数の和:8245

約数の個数: 16

約数和(自身を含む): 32171040

約数和(自身を除く): 12692086

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8123, 16246, 89353, 178706, 885407, 1770814, 9739477, 19478954]

約数ペア:

[(1, 19478954), (2, 9739477), (11, 1770814), (22, 885407), (109, 178706), (218, 89353), (1199, 16246), (2398, 8123)]