18987668

素因数分解:

$2^2\times 7^1\times {\mathrm{461}}^1\times {\mathrm{1471}}^1$

素因数の和:1943

約数の個数: 24

約数和(自身を含む): 38083584

約数和(自身を除く): 19095916

約数列:

[1, 2, 4, 7, 14, 28, 461, 922, 1471, 1844, 2942, 3227, 5884, 6454, 10297, 12908, 20594, 41188, 678131, 1356262, 2712524, 4746917, 9493834, 18987668]

約数ペア:

[(1, 18987668), (2, 9493834), (4, 4746917), (7, 2712524), (14, 1356262), (28, 678131), (461, 41188), (922, 20594), (1471, 12908), (1844, 10297), (2942, 6454), (3227, 5884)]