18987793

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1721}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 22317120

約数和(自身を除く): 3329327

約数列:

[1, 11, 17, 59, 187, 649, 1003, 1721, 11033, 18931, 29257, 101539, 321827, 1116929, 1726163, 18987793]

約数ペア:

[(1, 18987793), (11, 1726163), (17, 1116929), (59, 321827), (187, 101539), (649, 29257), (1003, 18931), (1721, 11033)]