21111928

素因数分解:

$2^3\times {\mathrm{601}}^1\times {\mathrm{4391}}^1$

素因数の和:4998

約数の個数: 16

約数和(自身を含む): 39659760

約数和(自身を除く): 18547832

約数列:

[1, 2, 4, 8, 601, 1202, 2404, 4391, 4808, 8782, 17564, 35128, 2638991, 5277982, 10555964, 21111928]

約数ペア:

[(1, 21111928), (2, 10555964), (4, 5277982), (8, 2638991), (601, 35128), (1202, 17564), (2404, 8782), (4391, 4808)]