19872589

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 22478976

約数和(自身を除く): 2606387

約数列:

[1, 11, 37, 157, 311, 407, 1727, 3421, 5809, 11507, 48827, 63899, 126577, 537097, 1806599, 19872589]

約数ペア:

[(1, 19872589), (11, 1806599), (37, 537097), (157, 126577), (311, 63899), (407, 48827), (1727, 11507), (3421, 5809)]