20890984

素因数分解:

$2^3\times {\mathrm{373}}^1\times {\mathrm{7001}}^1$

素因数の和:7380

約数の個数: 16

約数和(自身を含む): 39281220

約数和(自身を除く): 18390236

約数列:

[1, 2, 4, 8, 373, 746, 1492, 2984, 7001, 14002, 28004, 56008, 2611373, 5222746, 10445492, 20890984]

約数ペア:

[(1, 20890984), (2, 10445492), (4, 5222746), (8, 2611373), (373, 56008), (746, 28004), (1492, 14002), (2984, 7001)]