18985747

素因数分解:

${\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 22120560

約数和(自身を除く): 3134813

約数列:

[1, 11, 41, 43, 89, 121, 451, 473, 979, 1763, 3649, 3827, 4961, 5203, 10769, 19393, 40139, 42097, 156907, 213323, 441529, 463067, 1725977, 18985747]

約数ペア:

[(1, 18985747), (11, 1725977), (41, 463067), (43, 441529), (89, 213323), (121, 156907), (451, 42097), (473, 40139), (979, 19393), (1763, 10769), (3649, 5203), (3827, 4961)]