21863281

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1433}}^1$

素因数の和:1536

約数の個数: 16

約数和(自身を含む): 25467840

約数和(自身を除く): 3604559

約数列:

[1, 11, 19, 73, 209, 803, 1387, 1433, 15257, 15763, 27227, 104609, 299497, 1150699, 1987571, 21863281]

約数ペア:

[(1, 21863281), (11, 1987571), (19, 1150699), (73, 299497), (209, 104609), (803, 27227), (1387, 15763), (1433, 15257)]