21559153

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6829}}^1$

素因数の和:6888

約数の個数: 16

約数和(自身を含む): 27538560

約数和(自身を除く): 5979407

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6829, 47803, 75119, 279989, 525833, 1959923, 3079879, 21559153]

約数ペア:

[(1, 21559153), (7, 3079879), (11, 1959923), (41, 525833), (77, 279989), (287, 75119), (451, 47803), (3157, 6829)]