21838817

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21817}}^1$

素因数の和:21848

約数の個数: 16

約数和(自身を含む): 29323392

約数和(自身を除く): 7484575

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21817, 152719, 239987, 283621, 1679909, 1985347, 3119831, 21838817]

約数ペア:

[(1, 21838817), (7, 3119831), (11, 1985347), (13, 1679909), (77, 283621), (91, 239987), (143, 152719), (1001, 21817)]