21086439

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4597}}^1$

素因数の和:4750

約数の個数: 16

約数和(自身を含む): 30898560

約数和(自身を除く): 9812121

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4587, 4597, 13791, 50567, 151701, 638983, 1916949, 7028813, 21086439]

約数ペア:

[(1, 21086439), (3, 7028813), (11, 1916949), (33, 638983), (139, 151701), (417, 50567), (1529, 13791), (4587, 4597)]