21862256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105107}}^1$

素因数の和:105128

約数の個数: 20

約数和(自身を含む): 45616872

約数和(自身を除く): 23754616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105107, 210214, 420428, 840856, 1366391, 1681712, 2732782, 5465564, 10931128, 21862256]

約数ペア:

[(1, 21862256), (2, 10931128), (4, 5465564), (8, 2732782), (13, 1681712), (16, 1366391), (26, 840856), (52, 420428), (104, 210214), (208, 105107)]