19821190

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22271}}^1$

素因数の和:22367

約数の個数: 16

約数和(自身を含む): 36080640

約数和(自身を除く): 16259450

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22271, 44542, 111355, 222710, 1982119, 3964238, 9910595, 19821190]

約数ペア:

[(1, 19821190), (2, 9910595), (5, 3964238), (10, 1982119), (89, 222710), (178, 111355), (445, 44542), (890, 22271)]