21303139

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 26142480

約数和(自身を除く): 4839341

約数列:

[1, 11, 13, 29, 121, 143, 319, 377, 467, 1573, 3509, 4147, 5137, 6071, 13543, 45617, 56507, 66781, 148973, 176059, 734591, 1638703, 1936649, 21303139]

約数ペア:

[(1, 21303139), (11, 1936649), (13, 1638703), (29, 734591), (121, 176059), (143, 148973), (319, 66781), (377, 56507), (467, 45617), (1573, 13543), (3509, 6071), (4147, 5137)]