19890442

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4091}}^1$

素因数の和:4134

約数の個数: 32

約数和(自身を含む): 37122624

約数和(自身を除く): 17232182

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4091, 4862, 8182, 45001, 53183, 69547, 90002, 106366, 139094, 585013, 765017, 904111, 1170026, 1530034, 1808222, 9945221, 19890442]

約数ペア:

[(1, 19890442), (2, 9945221), (11, 1808222), (13, 1530034), (17, 1170026), (22, 904111), (26, 765017), (34, 585013), (143, 139094), (187, 106366), (221, 90002), (286, 69547), (374, 53183), (442, 45001), (2431, 8182), (4091, 4862)]