21895840

素因数分解:

$2^5\times 5^1\times {\mathrm{136849}}^1$

素因数の和:136864

約数の個数: 24

約数和(自身を含む): 51729300

約数和(自身を除く): 29833460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136849, 273698, 547396, 684245, 1094792, 1368490, 2189584, 2736980, 4379168, 5473960, 10947920, 21895840]

約数ペア:

[(1, 21895840), (2, 10947920), (4, 5473960), (5, 4379168), (8, 2736980), (10, 2189584), (16, 1368490), (20, 1094792), (32, 684245), (40, 547396), (80, 273698), (160, 136849)]