19803385

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 29175552

約数和(自身を除く): 9372167

約数列:

[1, 5, 7, 17, 35, 83, 85, 119, 401, 415, 581, 595, 1411, 2005, 2807, 2905, 6817, 7055, 9877, 14035, 33283, 34085, 47719, 49385, 166415, 232981, 238595, 565811, 1164905, 2829055, 3960677, 19803385]

約数ペア:

[(1, 19803385), (5, 3960677), (7, 2829055), (17, 1164905), (35, 565811), (83, 238595), (85, 232981), (119, 166415), (401, 49385), (415, 47719), (581, 34085), (595, 33283), (1411, 14035), (2005, 9877), (2807, 7055), (2905, 6817)]