20839281

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{431}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 28366848

約数和(自身を除く): 7527567

約数列:

[1, 3, 71, 213, 227, 431, 681, 1293, 16117, 30601, 48351, 91803, 97837, 293511, 6946427, 20839281]

約数ペア:

[(1, 20839281), (3, 6946427), (71, 293511), (213, 97837), (227, 91803), (431, 48351), (681, 30601), (1293, 16117)]