16978167

素因数分解:

$3^5\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 25705680

約数和(自身を除く): 8727513

約数列:

[1, 3, 9, 27, 81, 109, 243, 327, 641, 981, 1923, 2943, 5769, 8829, 17307, 26487, 51921, 69869, 155763, 209607, 628821, 1886463, 5659389, 16978167]

約数ペア:

[(1, 16978167), (3, 5659389), (9, 1886463), (27, 628821), (81, 209607), (109, 155763), (243, 69869), (327, 51921), (641, 26487), (981, 17307), (1923, 8829), (2943, 5769)]