18988136

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{5507}}^1$

素因数の和:5944

約数の個数: 16

約数和(自身を含む): 35691840

約数和(自身を除く): 16703704

約数列:

[1, 2, 4, 8, 431, 862, 1724, 3448, 5507, 11014, 22028, 44056, 2373517, 4747034, 9494068, 18988136]

約数ペア:

[(1, 18988136), (2, 9494068), (4, 4747034), (8, 2373517), (431, 44056), (862, 22028), (1724, 11014), (3448, 5507)]