20731907

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1607}}^1$

素因数の和:1730

約数の個数: 16

約数和(自身を含む): 25213440

約数和(自身を除く): 4481533

約数列:

[1, 7, 19, 97, 133, 679, 1607, 1843, 11249, 12901, 30533, 155879, 213731, 1091153, 2961701, 20731907]

約数ペア:

[(1, 20731907), (7, 2961701), (19, 1091153), (97, 213731), (133, 155879), (679, 30533), (1607, 12901), (1843, 11249)]