21279824

素因数分解:

$2^4\times {\mathrm{523}}^1\times {\mathrm{2543}}^1$

素因数の和:3074

約数の個数: 20

約数和(自身を含む): 41324736

約数和(自身を除く): 20044912

約数列:

[1, 2, 4, 8, 16, 523, 1046, 2092, 2543, 4184, 5086, 8368, 10172, 20344, 40688, 1329989, 2659978, 5319956, 10639912, 21279824]

約数ペア:

[(1, 21279824), (2, 10639912), (4, 5319956), (8, 2659978), (16, 1329989), (523, 40688), (1046, 20344), (2092, 10172), (2543, 8368), (4184, 5086)]