19898984

素因数分解:

$2^3\times 7^1\times {\mathrm{355339}}^1$

素因数の和:355352

約数の個数: 16

約数和(自身を含む): 42640800

約数和(自身を除く): 22741816

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355339, 710678, 1421356, 2487373, 2842712, 4974746, 9949492, 19898984]

約数ペア:

[(1, 19898984), (2, 9949492), (4, 4974746), (7, 2842712), (8, 2487373), (14, 1421356), (28, 710678), (56, 355339)]