21725584

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{13183}}^1$

素因数の和:13294

約数の個数: 20

約数和(自身を含む): 42505216

約数和(自身を除く): 20779632

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 13183, 26366, 52732, 105464, 210928, 1357849, 2715698, 5431396, 10862792, 21725584]

約数ペア:

[(1, 21725584), (2, 10862792), (4, 5431396), (8, 2715698), (16, 1357849), (103, 210928), (206, 105464), (412, 52732), (824, 26366), (1648, 13183)]