21255627

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{967}}^1$

素因数の和:1418

約数の個数: 16

約数和(自身を含む): 30108672

約数和(自身を除く): 8853045

約数列:

[1, 3, 17, 51, 431, 967, 1293, 2901, 7327, 16439, 21981, 49317, 416777, 1250331, 7085209, 21255627]

約数ペア:

[(1, 21255627), (3, 7085209), (17, 1250331), (51, 416777), (431, 49317), (967, 21981), (1293, 16439), (2901, 7327)]