19884137

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{619}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 24581760

約数和(自身を除く): 4697623

約数列:

[1, 7, 13, 91, 353, 619, 2471, 4333, 4589, 8047, 32123, 56329, 218507, 1529549, 2840591, 19884137]

約数ペア:

[(1, 19884137), (7, 2840591), (13, 1529549), (91, 218507), (353, 56329), (619, 32123), (2471, 8047), (4333, 4589)]