21805424

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80167}}^1$

素因数の和:80192

約数の個数: 20

約数和(自身を含む): 44733744

約数和(自身を除く): 22928320

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80167, 160334, 320668, 641336, 1282672, 1362839, 2725678, 5451356, 10902712, 21805424]

約数ペア:

[(1, 21805424), (2, 10902712), (4, 5451356), (8, 2725678), (16, 1362839), (17, 1282672), (34, 641336), (68, 320668), (136, 160334), (272, 80167)]