21059984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119659}}^1$

素因数の和:119678

約数の個数: 20

約数和(自身を含む): 44513520

約数和(自身を除く): 23453536

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119659, 239318, 478636, 957272, 1316249, 1914544, 2632498, 5264996, 10529992, 21059984]

約数ペア:

[(1, 21059984), (2, 10529992), (4, 5264996), (8, 2632498), (11, 1914544), (16, 1316249), (22, 957272), (44, 478636), (88, 239318), (176, 119659)]