18897003

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{6421}}^1$

素因数の和:6539

約数の個数: 16

約数和(自身を含む): 28256800

約数和(自身を除く): 9359797

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 6421, 19263, 57789, 173367, 699889, 2099667, 6299001, 18897003]

約数ペア:

[(1, 18897003), (3, 6299001), (9, 2099667), (27, 699889), (109, 173367), (327, 57789), (981, 19263), (2943, 6421)]