21988769

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1993}}^1$

素因数の和:2080

約数の個数: 16

約数和(自身を含む): 25842240

約数和(自身を除く): 3853471

約数列:

[1, 11, 17, 59, 187, 649, 1003, 1993, 11033, 21923, 33881, 117587, 372691, 1293457, 1998979, 21988769]

約数ペア:

[(1, 21988769), (11, 1998979), (17, 1293457), (59, 372691), (187, 117587), (649, 33881), (1003, 21923), (1993, 11033)]