18121340

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3271}}^1$

素因数の和:3557

約数の個数: 24

約数和(自身を含む): 38203872

約数和(自身を除く): 20082532

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3271, 5540, 6542, 13084, 16355, 32710, 65420, 906067, 1812134, 3624268, 4530335, 9060670, 18121340]

約数ペア:

[(1, 18121340), (2, 9060670), (4, 4530335), (5, 3624268), (10, 1812134), (20, 906067), (277, 65420), (554, 32710), (1108, 16355), (1385, 13084), (2770, 6542), (3271, 5540)]