21272836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{709}}^1$

素因数の和:1303

約数の個数: 24

約数和(自身を含む): 40217240

約数和(自身を除く): 18944404

約数列:

[1, 2, 4, 13, 26, 52, 577, 709, 1154, 1418, 2308, 2836, 7501, 9217, 15002, 18434, 30004, 36868, 409093, 818186, 1636372, 5318209, 10636418, 21272836]

約数ペア:

[(1, 21272836), (2, 10636418), (4, 5318209), (13, 1636372), (26, 818186), (52, 409093), (577, 36868), (709, 30004), (1154, 18434), (1418, 15002), (2308, 9217), (2836, 7501)]