20291187

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23567}}^1$

素因数の和:23618

約数の個数: 16

約数和(自身を含む): 31675392

約数和(自身を除く): 11384205

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23567, 70701, 164969, 494907, 966247, 2898741, 6763729, 20291187]

約数ペア:

[(1, 20291187), (3, 6763729), (7, 2898741), (21, 966247), (41, 494907), (123, 164969), (287, 70701), (861, 23567)]