998001

素因数分解:

$3^6\times {\mathrm{37}}^2$

素因数の和:92

約数の個数: 21

約数和(自身を含む): 1537851

約数和(自身を除く): 539850

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 729, 999, 1369, 2997, 4107, 8991, 12321, 26973, 36963, 110889, 332667, 998001]

約数ペア:

[(1, 998001), (3, 332667), (9, 110889), (27, 36963), (37, 26973), (81, 12321), (111, 8991), (243, 4107), (333, 2997), (729, 1369)]