215917919

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{30631}}^1$

素因数の和:30710

約数の個数: 16

約数和(自身を含む): 264660480

約数和(自身を除く): 48742561

約数列:

[1, 7, 19, 53, 133, 371, 1007, 7049, 30631, 214417, 581989, 1623443, 4073923, 11364101, 30845417, 215917919]

約数ペア:

[(1, 215917919), (7, 30845417), (19, 11364101), (53, 4073923), (133, 1623443), (371, 581989), (1007, 214417), (7049, 30631)]