27889328

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{21001}}^1$

素因数の和:21092

約数の個数: 20

約数和(自身を含む): 54689208

約数和(自身を除く): 26799880

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 21001, 42002, 84004, 168008, 336016, 1743083, 3486166, 6972332, 13944664, 27889328]

約数ペア:

[(1, 27889328), (2, 13944664), (4, 6972332), (8, 3486166), (16, 1743083), (83, 336016), (166, 168008), (332, 84004), (664, 42002), (1328, 21001)]