19949545

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51817}}^1$

素因数の和:51840

約数の個数: 16

約数和(自身を含む): 29847168

約数和(自身を除く): 9897623

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 51817, 259085, 362719, 569987, 1813595, 2849935, 3989909, 19949545]

約数ペア:

[(1, 19949545), (5, 3989909), (7, 2849935), (11, 1813595), (35, 569987), (55, 362719), (77, 259085), (385, 51817)]