20051213

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11597}}^1$

素因数の和:11636

約数の個数: 16

約数和(自身を含む): 25979520

約数和(自身を除く): 5928307

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 11597, 81179, 150761, 220343, 1055327, 1542401, 2864459, 20051213]

約数ペア:

[(1, 20051213), (7, 2864459), (13, 1542401), (19, 1055327), (91, 220343), (133, 150761), (247, 81179), (1729, 11597)]