20784328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{136739}}^1$

素因数の和:136764

約数の個数: 16

約数和(自身を含む): 41022000

約数和(自身を除く): 20237672

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 136739, 273478, 546956, 1093912, 2598041, 5196082, 10392164, 20784328]

約数ペア:

[(1, 20784328), (2, 10392164), (4, 5196082), (8, 2598041), (19, 1093912), (38, 546956), (76, 273478), (152, 136739)]