19992339

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{2837}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 30990960

約数和(自身を除く): 10998621

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2837, 7047, 8511, 25533, 76599, 82273, 229797, 246819, 689391, 740457, 2221371, 6664113, 19992339]

約数ペア:

[(1, 19992339), (3, 6664113), (9, 2221371), (27, 740457), (29, 689391), (81, 246819), (87, 229797), (243, 82273), (261, 76599), (783, 25533), (2349, 8511), (2837, 7047)]