215039891

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{1489}}^1$

素因数の和:2210

約数の個数: 16

約数和(自身を含む): 247459200

約数和(自身を除く): 32419309

約数列:

[1, 11, 19, 209, 691, 1489, 7601, 13129, 16379, 28291, 144419, 311201, 1028899, 11317889, 19549081, 215039891]

約数ペア:

[(1, 215039891), (11, 19549081), (19, 11317889), (209, 1028899), (691, 311201), (1489, 144419), (7601, 28291), (13129, 16379)]