18742256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90107}}^1$

素因数の和:90128

約数の個数: 20

約数和(自身を含む): 39106872

約数和(自身を除く): 20364616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90107, 180214, 360428, 720856, 1171391, 1441712, 2342782, 4685564, 9371128, 18742256]

約数ペア:

[(1, 18742256), (2, 9371128), (4, 4685564), (8, 2342782), (13, 1441712), (16, 1171391), (26, 720856), (52, 360428), (104, 180214), (208, 90107)]