21331664

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16063}}^1$

素因数の和:16154

約数の個数: 20

約数和(自身を含む): 41830656

約数和(自身を除く): 20498992

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16063, 32126, 64252, 128504, 257008, 1333229, 2666458, 5332916, 10665832, 21331664]

約数ペア:

[(1, 21331664), (2, 10665832), (4, 5332916), (8, 2666458), (16, 1333229), (83, 257008), (166, 128504), (332, 64252), (664, 32126), (1328, 16063)]